CN104165682A - Vibration fault early warning device and method of ventilation machine of internal combustion locomotive - Google Patents
Vibration fault early warning device and method of ventilation machine of internal combustion locomotive Download PDFInfo
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- CN104165682A CN104165682A CN201410380652.2A CN201410380652A CN104165682A CN 104165682 A CN104165682 A CN 104165682A CN 201410380652 A CN201410380652 A CN 201410380652A CN 104165682 A CN104165682 A CN 104165682A
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- vibration
- early warning
- alarm2
- alarm1
- ventilation machine
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Abstract
The invention discloses a vibration fault early warning device and method of a ventilation machine of an internal combustion locomotive. A vibration sensor is arranged on a bearing pedestal of a ventilation machine motor, signals output by the vibration sensor are connected with a data collector through a cable, information collected by the data collector is converted into digital signals through an A/D converter circuit, and then is transmitted to a microcomputer, and the microcomputer controls early warning to be output. Speed vibration early warning set values Valarm1 and Valarm2 and acceleration early warning set values Aalarm1 and Aalarm2 are set, the collected vibration signals are processed into a vibration speed signal V and an acceleration signal A, and if the V is larger than or equal to Valarm1 and smaller than Valarm2, or A is larger than or equal to Valarm1 and smaller than Valarm2, it is prompted that the state of the ventilation machine is checked in an early-warming mode; if V is larger than or equal to Valarm2 or A is larger than or equal to Valarm2, it is prompted that the ventilation machine is about to be in fault in an early-warming mode, and maintenance measures are required to be adopted. According to the device and method, vibration data of the ventilation machine in the running process can be effectively mastered, the abnormal phenomenon of the ventilation machine can be found in advance, the ventilation machine is protected in time, the fault or damage phenomenon can be prevented, and the machine breaking accident can be avoided.
Description
Technical field
The present invention relates to a kind of diesel locomotive ventilation blower vibration fault prior-warning device and method, belong to railway locomotive manufacturing technology field.
Background technology
On diesel locomotive, for the ventilation blower of cooling traction electric machine or main generator, be to be all directly installed on underframe, by wheel box, driven.Long-term diesel engine and locomotive operation vibration can cause ventilation blower fault, and serious meeting causes accident of locomotive defect, cause economic loss to utilization department.In the prior art, only at locomotive, carry out repairing in season, in annual overhaul, by measuring fan vibration or listening the mode of different sound to judge whether fault of ventilation blower, the ventilation blower vibration fault during to locomotive operation is helpless, without any Forewarning Measures.
Summary of the invention
Object of the present invention overcomes the deficiency of above-mentioned prior art exactly, and a kind of diesel locomotive ventilation blower vibration fault prior-warning device and method are provided, and can when vibration fault trend appears in ventilation blower, timely alert adopt an effective measure, and Accident prevention occurs.
The object of the present invention is achieved like this: a kind of diesel locomotive ventilation blower vibration fault prior-warning device, it is characterized in that, on the bearing seat of fan motor, vibration transducer is set, the signal of vibration transducer output is connected with data acquisition unit by cable, the information of data acquisition unit collection converts digital signal to through A/D change-over circuit, then send microcomputer to, microcomputer is controlled early warning output.
In order to realize better object of the present invention, between described/D change-over circuit and microcomputer, filtering treatment circuit is set.
A diesel locomotive ventilation blower vibration fault method for early warning, is characterized in that taking the following step:
A., speed vibration early warning setting value V is set
alarm1, V
alarm2with acceleration early warning setting value A
alarm1, A
alarm2, V wherein
alarm1< V
alarm2, A
alarm1< A
alarm2;
B. gather the vibration signal at fan motor bearing seat place;
C. the vibration signal processing collecting is become to vibration velocity signal V and acceleration signal A;
If V D.
alarm1≤ V < V
alarm2or A
alarm1≤ A < A
alarm2, early warning checks ventilation blower state; If V
alarm2≤ V or A
alarm2≤ A, early warning ventilation blower is about to break down, and need to take maintenance measure.
Technical scheme of the present invention is by protecting timely monitoring and the early warning of ventilation blower vibration; can effectively grasp the vibration data of ventilation blower when operation; and can accomplish to find in advance that ventilation blower is extremely on-the-spot; accomplish to protect in time ventilation blower; prevent fault or damage phenomenon, avoiding the generation of accident of locomotive defect.
Accompanying drawing explanation
Fig. 1 is the diesel locomotive ventilation blower vibration fault prior-warning device schematic block diagram of the embodiment of the present invention.
Fig. 2 is the FB(flow block) of the diesel locomotive ventilation blower vibration fault method for early warning of the embodiment of the present invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to accompanying drawing 1, the diesel locomotive ventilation blower vibration fault prior-warning device of the present embodiment is comprised of vibration-testing sensor, data acquisition unit, A/D change-over circuit, filtering treatment circuit, microcomputer and early warning holding circuit.Vibration transducer need to vertically be positioned on the bearing seat of fan motor, and the vibration signal of its output is connected with data acquisition unit by cable.Vibration signal is processed by data acquisition unit, the signal of output acceleration and speed.The acceleration of data acquisition unit output converts into digital signal to through A/D change-over circuit again with rate signal.In order to guarantee the accuracy of data, between A/D change-over circuit and microcomputer, be provided with filtering treatment circuit, digital signal filter is processed, get rid of other equipment operations or the artificial interference producing, then send into microcomputer.
Referring to accompanying drawing 2, the diesel locomotive ventilation blower vibration fault method for early warning of the present embodiment, starts at frame 1, then enters frame 1, and first speed vibration early warning setting value V is set in microcomputer
alarm1, V
alarm2with acceleration early warning setting value A
alarm1, A
alarm2, V wherein
alarm1< V
alarm2, A
alarm1< A
alarm2.Enter frame 3, gather the vibration signal at fan motor bearing seat place.Enter frame 4, the vibration signal processing collecting is become to vibration velocity signal V and acceleration signal A.Enter decision block 5, vibration velocity signal V and acceleration signal A are vibrated to early warning setting value V with speed respectively
alarm2with acceleration early warning setting value A
alarm2relatively: if V
alarm2≤ V or A
alarm2≤ A, enters frame 8, and early warning ventilation blower is about to break down, and need to take maintenance measure; Otherwise, enter decision block 6, vibration velocity signal V and acceleration signal A are vibrated to early warning setting value V with speed respectively
alarm1with acceleration early warning setting value A
alarm1relatively: if V
alarm1≤ V < V
alarm2or A
alarm1≤ A < A
alarm2, entering frame 7, early warning checks ventilation blower state, then returns to frame 3; Otherwise, directly return to frame 3.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (3)
1. a diesel locomotive ventilation blower vibration fault prior-warning device, it is characterized in that, on the bearing seat of fan motor, vibration transducer is set, the signal of vibration transducer output is connected with data acquisition unit by cable, the information of data acquisition unit collection converts digital signal to through A/D change-over circuit, then send microcomputer to, microcomputer is controlled early warning output.
2. diesel locomotive ventilation blower vibration fault prior-warning device according to claim 1, is characterized in that, between described/D change-over circuit and microcomputer, filtering treatment circuit is set.
3. a diesel locomotive ventilation blower vibration fault method for early warning, is characterized in that taking the following step:
A., speed vibration early warning setting value V is set
alarm1, V
alarm2with acceleration early warning setting value A
alarm1, A
alarm2, V wherein
alarm1< V
alarm2, A
alarm1< A
alarm2;
B. gather the vibration signal at fan motor bearing seat place;
C. the vibration signal processing collecting is become to vibration velocity signal V and acceleration signal A;
If V D.
alarm1≤ V < V
alarm2or A
alarm1≤ A < A
alarm2, early warning checks ventilation blower state; If V
alarm2≤ V or A
alarm2≤ A, early warning ventilation blower is about to break down, and need to take maintenance measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410380652.2A CN104165682A (en) | 2014-08-05 | 2014-08-05 | Vibration fault early warning device and method of ventilation machine of internal combustion locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410380652.2A CN104165682A (en) | 2014-08-05 | 2014-08-05 | Vibration fault early warning device and method of ventilation machine of internal combustion locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104165682A true CN104165682A (en) | 2014-11-26 |
Family
ID=51909600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410380652.2A Pending CN104165682A (en) | 2014-08-05 | 2014-08-05 | Vibration fault early warning device and method of ventilation machine of internal combustion locomotive |
Country Status (1)
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| CN (1) | CN104165682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726471A (en) * | 2019-11-28 | 2020-01-24 | 中国华能集团有限公司 | Monitoring device and monitoring method suitable for vibration of combustion chamber of gas turbine |
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| WO2004013589A1 (en) * | 2002-08-05 | 2004-02-12 | Synchro Co., Ltd. | Vibration detecting method and device |
| CN1487273A (en) * | 2003-08-28 | 2004-04-07 | 北京航空航天大学 | Portable intelligent vibration measuring instrument |
| CN101493355A (en) * | 2009-02-18 | 2009-07-29 | 长沙全程数字机电科技有限公司 | Integration oscillation monitoring instrument |
| CN102107222A (en) * | 2009-12-24 | 2011-06-29 | 上海梅山钢铁股份有限公司 | On-line vibration detection device and method for equipment state of hot finishing mill |
| CN102288153A (en) * | 2011-06-14 | 2011-12-21 | 四川大学 | Online monitoring system and method of high-voltage line windage based on vibration power generation |
| CN203643834U (en) * | 2014-01-10 | 2014-06-11 | 安徽理工大学 | Fault diagnosis system of mining main ventilator |
-
2014
- 2014-08-05 CN CN201410380652.2A patent/CN104165682A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004013589A1 (en) * | 2002-08-05 | 2004-02-12 | Synchro Co., Ltd. | Vibration detecting method and device |
| CN1487273A (en) * | 2003-08-28 | 2004-04-07 | 北京航空航天大学 | Portable intelligent vibration measuring instrument |
| CN101493355A (en) * | 2009-02-18 | 2009-07-29 | 长沙全程数字机电科技有限公司 | Integration oscillation monitoring instrument |
| CN102107222A (en) * | 2009-12-24 | 2011-06-29 | 上海梅山钢铁股份有限公司 | On-line vibration detection device and method for equipment state of hot finishing mill |
| CN102288153A (en) * | 2011-06-14 | 2011-12-21 | 四川大学 | Online monitoring system and method of high-voltage line windage based on vibration power generation |
| CN203643834U (en) * | 2014-01-10 | 2014-06-11 | 安徽理工大学 | Fault diagnosis system of mining main ventilator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726471A (en) * | 2019-11-28 | 2020-01-24 | 中国华能集团有限公司 | Monitoring device and monitoring method suitable for vibration of combustion chamber of gas turbine |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |