CN203117225U - Calibration device of rotating speed measuring meter of diesel engine - Google Patents
Calibration device of rotating speed measuring meter of diesel engine Download PDFInfo
- Publication number
- CN203117225U CN203117225U CN 201320098742 CN201320098742U CN203117225U CN 203117225 U CN203117225 U CN 203117225U CN 201320098742 CN201320098742 CN 201320098742 CN 201320098742 U CN201320098742 U CN 201320098742U CN 203117225 U CN203117225 U CN 203117225U
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- diesel engine
- vibration source
- rotating speed
- speed measuring
- motor
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Abstract
The utility model discloses a calibration device of a rotating speed measuring meter of a diesel engine. The calibration device comprises a micro computer, a frequency converter, a motor and a vibration source, wherein the vibration source is driven by the motor, the motor is connected with the micro computer through the frequency converter, and vibration of the vibration source is controlled by the micro computer. The vibration source can simulate pulse signals generated by high-pressure fuel injection of the diesel engine so as to detect the rotating speed measuring meter of the diesel engine. When the calibration device is used, what is needed is to fix the rotating speed measuring meter of the diesel engine on a vibration pipe of the vibration source, and therefore calibration or detection of the rotating speed measuring meter of the diesel engine can be conveniently and rapidly carried out. The calibration device can guarantee precision of value transmission of the detected rotating speed measuring meter of the diesel engine, and has the advantages of being scientific and reasonable in design, simple and practical in structure, low in cost, convenient to carry, easy to operate, reliable to operate, and high in detection precision.
Description
Technical field
The utility model belongs to measurement of engine rotate speed instrument calibrating installation correlative technology field, relates in particular to a kind of rotary speed of diesel engine measuring instrument calibrating installation.
Background technology
The measurement of engine rotate speed instrument is the specially-used measuring instrument that adopts contact method measured automobiles engine speed, be divided into petrol engine tachometer of measuring and rotary speed of diesel engine measuring instrument, be automobile performance test with one of most important, the most frequently used checkout equipment, the measurement permissible error of itself reaches ± and 1%.At present, the domestic product that does not still have ripe rotary speed of diesel engine measuring instrument calibrating installation, automobile industry all is that the rotating speed mode that adopts rated rotational frequency table and measurement of engine rotate speed instrument to measure a more satisfactory diesel motor simultaneously compares to realize magnitude tracing, because this method investment is very big, structure is huge, can not carry out the scene detects, and it is very big disturbed by installation, vibration, noise etc., has increased the unreliability of measurement result.
The utility model content
The technical problems to be solved in the utility model provides that a kind of design science is reasonable, simple and practical, with low cost, easy to carry, processing ease, reliable, rotary speed of diesel engine measuring instrument calibrating installation that accuracy of detection is high.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: rotary speed of diesel engine measuring instrument calibrating installation, comprise microcomputer, frequency converter, motor and vibration source, vibration source is by motor-driven, motor is connected with microcomputer by frequency converter, and the vibration of vibration source is controlled by microcomputer.
Frequency converter is connected by serial ports with microcomputer.
Microcomputer also is connected with nixie display and control button.
Vibration source is provided with Vib. and vibrating tube, and its vibration is controlled by microcomputer.
Vibration source can be simulated the fluctuating signal that the diesel motor high pressure fuel injector produces.
Problem at existing rotary speed of diesel engine measuring instrument calibrating installation product and method existence, the inventor has designed the utility model, detect the rotary speed of diesel engine measuring instrument by the vibration source that can simulate the fluctuating signal that the diesel motor high pressure fuel injector produces, overcome and traditional utilized ideal engine to be equipped with the rated rotational frequency table to carry out that cost height, structure that the calibration of rotary speed of diesel engine measuring instrument exists are huge, the deficiency of poor reliability, can guarantee the accuracy to tested rotary speed of diesel engine measuring instrument transmission of quantity value, and simple to operate, easy to carry.
Description of drawings
Fig. 1 is the structural representation of the utility model rotary speed of diesel engine measuring instrument calibrating installation.
Among the figure: 1 microcomputer, 2 frequency converters, 3 motors, 4 vibration sources, 5 nixie displaies, 6 control buttons.
Embodiment
Rotary speed of diesel engine measuring instrument calibrating installation, comprise microcomputer 1, frequency converter 2, motor 3 and vibration source 4, vibration source 4 is driven by motor 3, motor 3 is connected with microcomputer 1 electric signal by frequency converter 2, frequency converter 2 and microcomputer 1 are connected by serial ports, vibration source 4 is provided with Vib. and vibrating tube, and its vibration is by microcomputer 1 control, and microcomputer 1 also is connected with nixie display 5 and control button 6.Wherein, vibration source 4 can be simulated fluctuating signal that the diesel motor high pressure fuel injector produces to detect the rotary speed of diesel engine measuring instrument.As long as the measurement of engine rotate speed instrument is fixed on the vibrating tube of vibration source 4, can carry out calibration or the calibrating of measurement of engine rotate speed instrument quickly and easily during use.
Claims (5)
1. rotary speed of diesel engine measuring instrument calibrating installation, it is characterized in that comprising microcomputer, frequency converter, motor and vibration source, vibration source is by motor-driven, and motor is connected with microcomputer by frequency converter, and vibration source is connected with the input end of microcomputer.
2. rotary speed of diesel engine measuring instrument calibrating installation according to claim 1, it is characterized in that: described frequency converter is connected by serial ports with microcomputer.
3. rotary speed of diesel engine measuring instrument calibrating installation according to claim 2 is characterized in that: described microcomputer also is connected with nixie display and control button.
4. rotary speed of diesel engine measuring instrument calibrating installation according to claim 3, it is characterized in that: described vibration source is provided with Vib. and vibrating tube, and its vibration is controlled by microcomputer.
5. rotary speed of diesel engine measuring instrument calibrating installation according to claim 4, it is characterized in that: described vibration source can be simulated the fluctuating signal that the diesel motor high pressure fuel injector produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098742 CN203117225U (en) | 2013-03-05 | 2013-03-05 | Calibration device of rotating speed measuring meter of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098742 CN203117225U (en) | 2013-03-05 | 2013-03-05 | Calibration device of rotating speed measuring meter of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117225U true CN203117225U (en) | 2013-08-07 |
Family
ID=48897560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320098742 Expired - Fee Related CN203117225U (en) | 2013-03-05 | 2013-03-05 | Calibration device of rotating speed measuring meter of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117225U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412225A (en) * | 2013-08-24 | 2013-11-27 | 成都飞亚航空设备应用研究所有限公司 | Revolving speed correcting amplifier test equipment |
| CN103604953A (en) * | 2013-11-18 | 2014-02-26 | 上海工程技术大学 | High-precision automobile diesel engine rotating speed instrument verification device |
| CN103575933B (en) * | 2013-11-19 | 2016-08-17 | 浙江省计量科学研究院 | Vibration type engine speed measuring instrument calibrating installation and method |
| CN111190030A (en) * | 2020-04-01 | 2020-05-22 | 河南省计量科学研究院 | Engine speed measuring instrument calibrating device |
-
2013
- 2013-03-05 CN CN 201320098742 patent/CN203117225U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412225A (en) * | 2013-08-24 | 2013-11-27 | 成都飞亚航空设备应用研究所有限公司 | Revolving speed correcting amplifier test equipment |
| CN103604953A (en) * | 2013-11-18 | 2014-02-26 | 上海工程技术大学 | High-precision automobile diesel engine rotating speed instrument verification device |
| CN103575933B (en) * | 2013-11-19 | 2016-08-17 | 浙江省计量科学研究院 | Vibration type engine speed measuring instrument calibrating installation and method |
| CN111190030A (en) * | 2020-04-01 | 2020-05-22 | 河南省计量科学研究院 | Engine speed measuring instrument calibrating device |
| CN111190030B (en) * | 2020-04-01 | 2021-09-21 | 河南省计量科学研究院 | Engine speed measuring instrument calibrating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |