CN203275092U - Sampling device for measuring torsional vibration of engine shafting - Google Patents
Sampling device for measuring torsional vibration of engine shafting Download PDFInfo
- Publication number
- CN203275092U CN203275092U CN 201320219695 CN201320219695U CN203275092U CN 203275092 U CN203275092 U CN 203275092U CN 201320219695 CN201320219695 CN 201320219695 CN 201320219695 U CN201320219695 U CN 201320219695U CN 203275092 U CN203275092 U CN 203275092U
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- engine
- magneto
- torsional vibration
- magnetoelectric sensor
- sensor support
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a measuring device for torsional vibration of an engine shafting. The device comprises a magneto-electric sensor, a magneto-electric sensor support and a signal disc. The magneto-electric sensor is disposed on the magneto-electric sensor support which is arranged on an engine cylinder body. The signal disc is arranged on an engine shafting. The top of the magneto-electric sensor support is designed to be four round positioning parts, and the magneto-electric sensor can be arranged at the four different positions to be suitable for different measuring positions and to help ensure that the magneto-electric sensor and the signal disc are centered to each other. The device is applied for the first time to measurement of torsional vibration of an engine shafting. The device is simple in structure and high in measuring precision, is convenient to mount, and is not affected by an engine and external vibration.
Description
Technical field
The utility model belongs to the Engine Block Test field, is specifically related to a kind of engine shafting torsional vibration test sampler.
Background technology
At present, the laser-Doppler torsiograph is adopted in the engine torsional vibration measurement more, and the laser-Doppler torsiograph is more responsive to the vibration of engine pedestal, in case platform adds vibration greatly can't obtain stable signal.
Summary of the invention
The purpose of this utility model is to provide a kind of and the engine shafting torsional vibration test sampler engine one, by shielding the vibration in engine and the external world to the impact of test result with the engine integration design, this apparatus structure is simple, easy for installation, not affected by engine and extraneous vibration, measuring accuracy is high.
The technical solution of the utility model: engine shafting torsional vibration test sampler of the present utility model comprises magnetoelectric sensor, magnetoelectric sensor support, signal panels, its magnetoelectric sensor support is installed on engine cylinder-body, signal panels are installed on engine shaft and fasten, the top design of magnetoelectric sensor support becomes four circle location types, the top of magnetoelectric sensor support comprises arc installed surface, arc lower installed surface, left arc installed surface, right arc installed surface, and there is fixed orifice the centre.
The cylindrical of described signal panels has 60 or 120 uniform rectangular teeths, and four fixing threaded holes are arranged around the center pit that the center of signal panels has engine shaft to install, center pit.
Advantage of the present utility model: the utility model is used for the engine shafting torsional vibration test, and is simple in structure, easy for installation, not affected by engine and extraneous vibration, and measuring accuracy is high.
Description of drawings
Fig. 1 is general structure schematic diagram of the present utility model.
Fig. 2 is magnetoelectric sensor supporting structure schematic diagram of the present utility model.
Fig. 3 is signal panels structural representation of the present utility model.
Embodiment
Fig. 1 is general structure schematic diagram of the present utility model, and Fig. 2 is magnetoelectric sensor supporting structure schematic diagram of the present utility model:
The utility model provides a kind of engine shafting torsional vibration test sampler, comprise magnetoelectric sensor 1, magnetoelectric sensor support 2, signal panels 3, it is characterized in that: magnetoelectric sensor support 2 is installed on engine cylinder-body 4, it is on 5 that signal panels 3 are installed on engine shaft, the top design of magnetoelectric sensor support 2 becomes four circle location types, the top of magnetoelectric sensor support 2 comprises arc installed surface 2a, arc lower installed surface 2b, left arc installed surface 2c, right arc installed surface 2d, and there is fixed orifice 2e the centre.
Fig. 3 is signal panels structural representation of the present utility model: the cylindrical of described signal panels 3 has 60 or 120 uniform rectangular teeth 3a, and four fixing threaded hole 3c are arranged around the center pit 3b that the center of signal panels 3 has engine shaft to install, center pit 3b.
Magnetoelectric sensor 1 of the present utility model can be contained in arc installed surface 2a, arc lower installed surface 2b, left arc installed surface 2c, right arc installed surface 2d4 different position being applicable to different measuring positions, and guarantees the centering of magnetoelectric sensor 1 and signal panels 3.The Excircle machining of signal panels becomes 60 or 120 uniform rectangular teeths.
Magnetoelectric sensor is to utilize electromagnetic induction principle measured (as vibration, displacement, rotating speed etc.) to be converted to a kind of sensor of electric signal.It does not need accessory power supply just can convert the mechanical quantity of measurand to be easy to measure electric signal, is active sensor.Large and the stable performance due to its output power, has certain bandwidth of operation (10～1000 Hz), magnetoelectric sensor coil, magnet are with respect to the bent axle transfixion, signal panels are arranged on bent axle, rotate with bent axle, tooth of every rotation, the concavo-convex of tooth causes that the magnetic circuit reluctance in magnetoelectric sensor changes once, magnetic flux also just changes once, produces induced potential in coil, and its change frequency equals the product of speed of crankshaft and the prototype gear number of teeth.Utilize integrating circuit in speed of crankshaft Signal cooperation magnetoelectric sensor can obtain the torsional displacement signal of bent axle.
Claims (2)
1. engine shafting torsional vibration test sampler, comprise magnetoelectric sensor (1), magnetoelectric sensor support (2), signal panels (3), it is characterized in that: magnetoelectric sensor support (2) is installed on engine cylinder-body (4), signal panels (3) are installed in engine shaft system (5), the top design of magnetoelectric sensor support (2) becomes four circle location types, the top of magnetoelectric sensor support (2) comprises arc installed surface (2a), arc lower installed surface (2b), left arc installed surface (2c), right arc installed surface (2d), there is fixed orifice (2e) centre.
2. engine shafting torsional vibration test sampler according to claim 1, it is characterized in that: the cylindrical of described signal panels (3) has 60 or 120 uniform rectangular teeths (3a), the center pit (3b) that the center of signal panels (3) has engine shaft to install, center pit (3b) has four fixing threaded holes (3c) on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219695 CN203275092U (en) | 2013-04-26 | 2013-04-26 | Sampling device for measuring torsional vibration of engine shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320219695 CN203275092U (en) | 2013-04-26 | 2013-04-26 | Sampling device for measuring torsional vibration of engine shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275092U true CN203275092U (en) | 2013-11-06 |
Family
ID=49505473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320219695 Expired - Fee Related CN203275092U (en) | 2013-04-26 | 2013-04-26 | Sampling device for measuring torsional vibration of engine shafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706114A (en) * | 2017-02-21 | 2017-05-24 | 北京汽车研究总院有限公司 | Vehicle transmission shaft torsional vibration characteristic acquisition device |
-
2013
- 2013-04-26 CN CN 201320219695 patent/CN203275092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706114A (en) * | 2017-02-21 | 2017-05-24 | 北京汽车研究总院有限公司 | Vehicle transmission shaft torsional vibration characteristic acquisition 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160426 |