CN202870110U - Rotating speed signal acquisition system of engine vibration noise test - Google Patents
Rotating speed signal acquisition system of engine vibration noise test Download PDFInfo
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- CN202870110U CN202870110U CN 201220424864 CN201220424864U CN202870110U CN 202870110 U CN202870110 U CN 202870110U CN 201220424864 CN201220424864 CN 201220424864 CN 201220424864 U CN201220424864 U CN 201220424864U CN 202870110 U CN202870110 U CN 202870110U
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Abstract
The present utility model provides a rotating speed signal acquisition system of an engine vibration noise test. The system comprises an engine rotating speed signal acquisition unit for measuring rotating speed of an engine, converting the rotating speed into a corresponding simulation rotating speed signal and outputting the signal; a signal processing unit for receiving the simulation rotating speed signal output by the engine rotating speed signal acquisition unit, processing the signal, and outputting a digital rotating speed signal OUT1 and a digital signal OUT2 to vibration noise test equipment; and a power supply unit for providing working electricity for the signal processing unit. On the basis of rapidly and accurately detecting the rotating speed of the engine, the installing structure can be simplified, the operation is simple, production efficiency is enhanced, costs can be greatly reduced, and enterprise expenditure can be saved.
Description
Technical field
The utility model relates to a kind of signal acquiring system, relates in particular to a kind of speed signal acquisition of engine luggine noise fest.
Background technology
The vibration of engine and noise are the vibration of motor vehicles and the largest source of noise; the vibration of engine and noise not only bring negative effect to the performance and used life of engine itself; and the people of ride-on vehicles is felt under the weather; and noise can produce noise pollution; be unfavorable for environmental protection; therefore, need to carry out to the engine of vehicle vibration noise and detect, improve the vibration noise of engine according to the parameter that detects.
When vibrating with walkaway for motor vehicles, it generally is the purpose that indirectly reaches the moving and noise of vibration measuring by the rotating speed that detects motor vehicle engine, in existing technology, all adopt the checkout equipment of import for detection of the equipment of motor vehicle engine rotating speed, although these imports can accurately detect the rotating speed of engine and make it conversion digital signal and be input in vibration and the noise fest equipment, but its price is but very high, has greatly increased the production cost of enterprise; These device structures are generally complicated, and it is very inconvenient that operation is installed, and reduced production efficiency; The engine speed monitoring equipment specificity of import is more intense, and this is just so that its versatility is poor, uses extensivelyless, and only has one road signal to export, and has also further limited usable range.
Therefore, need a kind of engine speed checkout equipment of redesign, simplify mounting structure, make simple to operately, enhance productivity, and reduce cost widely, save enterprise's spending; Can export two railway digital tach signals, increase its usable range.
The utility model content
In view of this, the speed signal acquisition of a kind of engine luggine noise fest that the utility model provides is simplified mounting structure, makes simple to operately, enhances productivity, and reduces cost widely, saves enterprise's spending; Can export two railway digital tach signals, increase its usable range.
The speed signal acquisition of a kind of engine luggine noise fest that the utility model provides comprises:
The engine rotational speed signal collecting unit is used for measuring engine speed and transfers rotating speed to corresponding simulation tach signal and output;
Signal processing unit is used for receiving the simulation tach signal of engine rotational speed signal collecting unit output and processing backward vibration and noise test equipment and export digital tach signal OUT1 and digital signal OUT2 two paths of signals;
Power supply unit is used for providing the work electricity consumption to signal processing unit; The utility model is simplified mounting structure on the basis of detecting rapidly and accurately engine speed, make simple to operately, enhances productivity, and reduces cost widely, saves enterprise's spending;
Further, described signal processing unit comprises five terminals, terminal A1 is connected to the civil power power transmission network and goes out end, terminal A2 is connected to the engine rotational speed signal output terminal, terminal A3 is connected to the DC output end of power supply unit, terminal A4 exports digital tach signal OUT1, and terminal A5 exports digital tach signal OUT2, and described digital tach signal OUT1 is identical two paths of signals with digital tach signal OUT2; Adopt the identical digital tach signal output of two-way, effectively increased the utility model usage range, make its applicability wider, use convenient;
Further, described engine rotational speed signal collecting unit is induction firing pulse sensor, is connected to the high-voltage ignition coil of engine; Adopt this sensor, so that install simply, only need vise high-voltage ignition coil and get final product, the raising installation effectiveness need not to reset the parameters such as cylinder, stroke, operate easier so that efficient improves greatly;
Further; described power supply unit is for being converted to the 220V civil power Switching Power Supply of 15V direct current output; adopt Switching Power Supply; can not be subjected to the impact of voltage ripple of power network for signal processing unit provides stable 15V DC voltage, be subjected to electric unit thereby can protect; avoid voltage fluctuation and be damaged; and the efficient that interchange is converted to direct current is high, and load capacity is strong, and small volume and less weight.
The beneficial effects of the utility model: the utility model is compared with existing equipment, in the situation system of the accuracy of detection that does not reduce existing equipment, greatly simplified mounting structure, so that production efficiency significantly improves, obviously reduce manufacturing cost, effectively reduced the spending of enterprise, and the output of two railway digital tach signals, so that use of the present utility model is convenient, guarantee for a long time steady operation of the utility model, increase the service life, and increase its scope of application, applicability is wider.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Fig. 1 is schematic diagram of the present utility model, as shown in the figure, the speed signal acquisition of a kind of engine luggine noise fest that the utility model provides comprises: engine rotational speed signal collecting unit 3 is used for measuring engine speed and transfers rotating speed to corresponding simulation tach signal and output; Signal processing unit 4 is used for receiving the simulation tach signal of engine rotational speed signal collecting unit 3 outputs and processes the backward vibration and noise test equipment 5 digital tach signal OUT1 of output and digital signal OUT2 two paths of signals; Power supply unit 2 is used for providing the work electricity consumption to signal processing unit; The utility model is simplified mounting structure on the basis of detecting rapidly and accurately engine speed, make simple to operately, enhances productivity, and reduces cost widely, saves enterprise's spending.
In the present embodiment, described signal processing unit 4 comprises five terminals, terminal A1 is connected to civil power power transmission network 1 output terminal, can guarantee the Alternating Current Power Supply of signal processing unit, terminal A2 is connected to the engine rotational speed signal output terminal, and terminal A3 is connected to the DC output end of power supply unit 2, and terminal A4 exports digital tach signal OUT1, terminal A5 exports digital tach signal OUT2, and described digital tach signal OUT1 is identical two paths of signals with digital tach signal OUT2; Adopt the identical digital tach signal output of two-way, effectively increased the utility model usage range, make its applicability wider, use convenient, do not repeat them here, in Fig. 1, the digital tach signal of terminal A4 and terminal A5 output is input in the vibration noise equipment 5 and detects, vibration noise equipment 5 is outsourcing device, does not repeat them here.
In the present embodiment, described engine rotational speed signal collecting unit 3 is induction firing pulse sensor, is connected to the high-voltage ignition coil of engine; Adopt this sensor, so that install simply, only need vise high-voltage ignition coil and get final product, improve installation effectiveness, need not to reset the parameters such as cylinder, stroke, operate easier, so that efficient improves greatly, in the present embodiment, adopt the IP-296 sensor of the little wild company of Japan production.
In the present embodiment; described power supply unit 2 is for being converted to the 220V civil power Switching Power Supply of 15V direct current output; adopt Switching Power Supply; can not be subjected to the impact of voltage ripple of power network for signal processing unit provides stable 15V DC voltage, thus can the guard signal processing unit; avoid voltage fluctuation and be damaged; and the efficient that interchange is converted to direct current is high, and load capacity is strong, and small volume and less weight.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. the speed signal acquisition of an engine luggine noise fest is characterized in that: comprising:
The engine rotational speed signal collecting unit is used for measuring engine speed and transfers rotating speed to corresponding simulation tach signal and output;
Signal processing unit is used for receiving the simulation tach signal of engine rotational speed signal collecting unit output and processing backward vibration and noise test equipment and export digital tach signal OUT1 and digital signal OUT2 two paths of signals;
Power supply unit is used for providing the work electricity consumption to signal processing unit.
2. the speed signal acquisition of described engine luggine noise fest according to claim 1, it is characterized in that: described signal processing unit comprises five terminals, terminal A1 is connected to the civil power power transmission network and goes out end, terminal A2 is connected to the engine rotational speed signal output terminal, terminal A3 is connected to the DC output end of power supply unit, terminal A4 exports digital tach signal OUT1, and terminal A5 exports digital tach signal OUT2, and described digital tach signal OUT1 is identical two paths of signals with digital tach signal OUT2.
3. the speed signal acquisition of described engine luggine noise fest according to claim 2, it is characterized in that: described engine rotational speed signal collecting unit is induction firing pulse sensor, is connected to the high-voltage ignition coil of engine.
4. the speed signal acquisition of described engine luggine noise fest according to claim 3, it is characterized in that: described power supply unit is for being converted to the 220V civil power Switching Power Supply of 15V direct current output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424864 CN202870110U (en) | 2012-08-24 | 2012-08-24 | Rotating speed signal acquisition system of engine vibration noise test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424864 CN202870110U (en) | 2012-08-24 | 2012-08-24 | Rotating speed signal acquisition system of engine vibration noise test |
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| Publication Number | Publication Date |
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| CN202870110U true CN202870110U (en) | 2013-04-10 |
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| CN 201220424864 Expired - Fee Related CN202870110U (en) | 2012-08-24 | 2012-08-24 | Rotating speed signal acquisition system of engine vibration noise test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592128A (en) * | 2013-10-23 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Noise testing device and method for aircraft engine bypass |
| CN104914270A (en) * | 2015-06-08 | 2015-09-16 | 无锡吉兴汽车声学部件科技有限公司 | Test method for rapidly acquiring rotation speed of automobile engine |
| CN108470148A (en) * | 2018-02-14 | 2018-08-31 | 上海为秀互联网科技有限公司 | Engine speed detection method, detecting system, internet platform and its application |
| CN113720613A (en) * | 2020-05-25 | 2021-11-30 | 中国航发商用航空发动机有限责任公司 | Signal simulation device and method, engine vibration monitoring system and test method |
-
2012
- 2012-08-24 CN CN 201220424864 patent/CN202870110U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592128A (en) * | 2013-10-23 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Noise testing device and method for aircraft engine bypass |
| CN103592128B (en) * | 2013-10-23 | 2015-11-04 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of aircraft engine duct noise-measuring system and method |
| CN104914270A (en) * | 2015-06-08 | 2015-09-16 | 无锡吉兴汽车声学部件科技有限公司 | Test method for rapidly acquiring rotation speed of automobile engine |
| CN108470148A (en) * | 2018-02-14 | 2018-08-31 | 上海为秀互联网科技有限公司 | Engine speed detection method, detecting system, internet platform and its application |
| CN108470148B (en) * | 2018-02-14 | 2022-03-15 | 上海为秀互联网科技有限公司 | Engine rotating speed detection method, engine rotating speed detection system, internet platform and application of internet platform |
| CN113720613A (en) * | 2020-05-25 | 2021-11-30 | 中国航发商用航空发动机有限责任公司 | Signal simulation device and method, engine vibration monitoring system and test method |
| CN113720613B (en) * | 2020-05-25 | 2024-02-09 | 中国航发商用航空发动机有限责任公司 | Signal simulation device and method, engine vibration monitoring system and testing method |
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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: 20130410 Termination date: 20150824 |
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| EXPY | Termination of patent right or utility model |