CN112557689A - Rotational speed comprehensive measurement device based on asymmetric structure tone wheel - Google Patents
Rotational speed comprehensive measurement device based on asymmetric structure tone wheel Download PDFInfo
- Publication number
- CN112557689A CN112557689A CN202011367596.0A CN202011367596A CN112557689A CN 112557689 A CN112557689 A CN 112557689A CN 202011367596 A CN202011367596 A CN 202011367596A CN 112557689 A CN112557689 A CN 112557689A
- Authority
- CN
- China
- Prior art keywords
- diffuse reflection
- rotor
- strip
- strips
- diffuse
- Prior art date
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title claims description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application provides a measuring device is synthesized to rotational speed based on asymmetric structure tone wheel, the device includes rotor (1), conventional diffuse reflection strip (2), oblique diffuse reflection strip (3), location diffuse reflection strip (4), photoelectric sensor (5), wherein: the rotor (1) is a ring-shaped sound wheel with an asymmetric structure, one end of the rotor (1) is open, and the other end of the rotor (1) is closed; n conventional diffuse reflection strips (2) and a positioning diffuse reflection strip (4) are axially arranged on the outer wall of the circular ring of the rotor (1); an inclined diffuse reflection strip (3) which forms a preset angle with the axial direction of the rotor (1) is arranged between two conventional diffuse reflection strips (2); the positioning diffuse reflection strips (4) are used for determining the position of the rotor (1), the oblique diffuse reflection strips (3) are used for determining the axial displacement of the rotor (1), and the photoelectric sensor (5) is located on the outer side of a circular ring of the rotor (1) and used for transmitting and receiving rotating speed signals.
Description
Technical Field
The invention belongs to the field of comprehensive measurement of the rotating speed of an engine, and particularly relates to a comprehensive rotating speed measuring device based on an asymmetric structure tone wheel.
Background
Most of the existing speed sensors are of symmetrical gear structures, when the rotating speed of an engine is below 8%, a measuring signal cannot be obtained, however, the rotating speed of 8% is enough to enable a fuel system and a lubricating oil system to generate higher pressure, when a plurality of systems of the engine are still in a working state, a control system loses a key parameter of the rotating speed, and great potential safety hazards exist.
Disclosure of Invention
The invention provides a rotating speed comprehensive measuring device based on a tone wheel with an asymmetric structure, which ensures that the pulse interval of a photoelectric probe output signal of the tone wheel comprises information such as rotating speed, rotor azimuth, axial displacement and the like by adjusting the gap, the shape and the axial inclination degree of a diffuse reflection strip of the tone wheel, and expands the lower limit of rotating speed measurement to 1%.
The application provides a measuring device is synthesized to rotational speed based on asymmetric structure tone wheel, the device includes rotor (1), conventional diffuse reflection strip (2), oblique diffuse reflection strip (3), location diffuse reflection strip (4), photoelectric sensor (5), wherein:
the rotor (1) is a tone wheel structure with an asymmetric reflection strip arranged on the outer wall of a circular ring in a circular shape; n conventional diffuse reflection strips (2) and a positioning diffuse reflection strip (4) are axially arranged on the outer wall of the circular ring of the rotor (1); an inclined diffuse reflection strip (3) which forms a preset angle with the axial direction of the rotor (1) is arranged between the two conventional diffuse reflection strips (2); the positioning diffuse reflection strips (4) are used for determining the position of the rotor (1), the oblique diffuse reflection strips (3) are used for determining the axial displacement of the rotor (1), and the conventional diffuse reflection strips (2) are used for determining the rotating speed; the photoelectric sensor (5) is positioned outside the circular ring of the rotor (1) and used for transmitting and receiving a rotating speed signal.
Preferably, the distance between the positioning diffuse reflection strip (4) and the adjacent farthest conventional diffuse reflection strip (2) is M times of the distance between the positioning diffuse reflection strip (4) and the adjacent nearest conventional diffuse reflection strip (2).
Preferably, N is 2 or more.
Preferably, M is 3 or more.
Preferably, the rotating speed signal emitted by the photoelectric sensor (5) passes through the position of the axis of the rotor (1).
Preferably, the spacing between each conventional diffuse reflection bar (2) is equal.
Preferably, the conventional diffuse reflection strips (2), the inclined diffuse reflection strips (3) and the positioning diffuse reflection strips (4) are strip-shaped grooves or strip-shaped through holes in the circular ring of the rotor (1).
Preferably, the annular width of the rotor (1) is equal to or greater than twice the axial amplitude of the rotor (1).
In summary, the invention can adjust the gap, shape and axial inclination degree of the diffuse reflection strip of the tone wheel, so that the pulse interval of the output signal of the photoelectric probe comprises information such as rotating speed, rotor azimuth and axial displacement, and the lower limit of rotating speed measurement is expanded to 1%.
Drawings
Fig. 1 is a schematic view of a device for comprehensively measuring the rotating speed of a tone wheel with an asymmetric structure provided by the invention.
Detailed Description
A rotational speed comprehensive measurement device based on an asymmetric structure tone wheel is shown in figure 1 and is characterized by comprising a rotor (1), a conventional diffuse reflection strip (2), an oblique diffuse reflection strip (3), a positioning diffuse reflection strip (4) and a photoelectric sensor (5). The rotor (1) is of a circular ring structure, the conventional diffuse reflection strips (2), the oblique diffuse reflection strips (3) and the positioning diffuse reflection strips (4) are strip-shaped notches on a circular ring of the rotor (1), the distribution form of the conventional diffuse reflection strips is an asymmetric structure, the photoelectric sensor (5) is located on the outer side of the circular ring of the rotor (1), and when the rotor (1) rotates, the photoelectric sensor is used for outputting signals when the diffuse reflection strips pass through. The 'diffuse reflection strip' is adopted to replace 'teeth' in a conventional sensor, so that the influence of an asymmetric structure on the vibration characteristic of the rotor is avoided.
The orientation of the rotor (1) is determined by the positioning diffuse reflection strips (4), and the distance between the positioning diffuse reflection strips (4) and the previous conventional diffuse reflection strip (2) is increased to be 3 times of the conventional distance in design and is used as the identification characteristic of the positioning diffuse reflection strips (4). The axial displacement of the rotor is determined by the inclined diffuse reflection strips (3), and the diffuse reflection strips form a certain angle with the axial direction of the rotor (1) between the two conventional diffuse reflection strips (2). The rotating speed measuring device is characterized in that a plurality of conventional diffuse reflection strips (2) are arranged between the positioning diffuse reflection strips (4) and the inclined diffuse reflection strips (3), the rotating speed measuring speed can be increased by increasing the number of the conventional diffuse reflection strips (2), and the rotating speed measuring device is a main guarantee for expanding the lower limit of rotating speed measurement.
In conclusion, the comprehensive rotating speed measuring device for the sound wheel with the asymmetric structure can expand the lower limit of rotating speed measurement to 1% and provides guarantee for safety control of an engine; and meanwhile, the rotor position and the rotor axial displacement can be given, and data are provided for the design of a rotor system.
Claims (8)
1. The utility model provides a rotational speed integrated measurement device based on asymmetric structure tone wheel, its characterized in that, the device includes rotor (1), conventional diffuse reflection strip (2), oblique diffuse reflection strip (3), location diffuse reflection strip (4), photoelectric sensor (5), wherein:
the rotor (1) is a tone wheel structure with an asymmetric reflection strip arranged on the outer wall of a circular ring in a circular shape; n conventional diffuse reflection strips (2) and a positioning diffuse reflection strip (4) are axially arranged on the outer wall of the circular ring of the rotor (1); an inclined diffuse reflection strip (3) which forms a preset angle with the axial direction of the rotor (1) is arranged between the two conventional diffuse reflection strips (2); the positioning diffuse reflection strips (4) are used for determining the position of the rotor (1), the oblique diffuse reflection strips (3) are used for determining the axial displacement of the rotor (1), and the conventional diffuse reflection strips (2) are used for determining the rotating speed; the photoelectric sensor (5) is positioned outside the circular ring of the rotor (1) and used for transmitting and receiving a rotating speed signal.
2. The arrangement according to claim 1, characterized in that the distance between the positioned diffuse reflecting strip (4) and the adjacent furthest conventional diffuse reflecting strip (2) is M times the distance between the positioned diffuse reflecting strip (4) and the adjacent closest conventional diffuse reflecting strip (2).
3. The apparatus of claim 1, wherein N is 2 or greater.
4. The apparatus of claim 1, wherein M is equal to or greater than 3.
5. The device according to claim 1, characterized in that the rotation speed signal emitted by the photoelectric sensor (5) passes through a position at the axial center of the rotor (1).
6. The device according to claim 1, characterized in that the spacing between each conventional diffuse reflecting strip (2) is equal.
7. The device according to claim 1, characterized in that the regular diffuse reflection strips (2), the oblique diffuse reflection strips (3) and the positioning diffuse reflection strips (4) are all strip-shaped grooves or strip-shaped through holes on the circular ring of the rotor (1).
8. The device according to claim 1, characterized in that the width of the circle of the rotor (1) is more than or equal to twice the amplitude of the axis of the rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367596.0A CN112557689A (en) | 2020-11-27 | 2020-11-27 | Rotational speed comprehensive measurement device based on asymmetric structure tone wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367596.0A CN112557689A (en) | 2020-11-27 | 2020-11-27 | Rotational speed comprehensive measurement device based on asymmetric structure tone wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112557689A true CN112557689A (en) | 2021-03-26 |
Family
ID=75046576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011367596.0A Pending CN112557689A (en) | 2020-11-27 | 2020-11-27 | Rotational speed comprehensive measurement device based on asymmetric structure tone wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112557689A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048420A1 (en) * | 2010-10-15 | 2012-04-19 | Silonex Inc. | Optical positioning system and method |
| CN202501857U (en) * | 2012-02-08 | 2012-10-24 | 德州学院 | Reflective camshaft position sensor |
| CN103635811A (en) * | 2011-07-06 | 2014-03-12 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Device for measuring angle and angular velocity or distance and speed |
| CN106595728A (en) * | 2016-12-13 | 2017-04-26 | 西安交通大学 | Rotor axial displacement, rotating speed and inclination angle radial integrated measurement method |
| CN110657030A (en) * | 2018-06-29 | 2020-01-07 | 普拉特 - 惠特尼加拿大公司 | Propeller blade synchronous phasing using tone wheels |
-
2020
- 2020-11-27 CN CN202011367596.0A patent/CN112557689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048420A1 (en) * | 2010-10-15 | 2012-04-19 | Silonex Inc. | Optical positioning system and method |
| CN103635811A (en) * | 2011-07-06 | 2014-03-12 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Device for measuring angle and angular velocity or distance and speed |
| CN202501857U (en) * | 2012-02-08 | 2012-10-24 | 德州学院 | Reflective camshaft position sensor |
| CN106595728A (en) * | 2016-12-13 | 2017-04-26 | 西安交通大学 | Rotor axial displacement, rotating speed and inclination angle radial integrated measurement method |
| CN110657030A (en) * | 2018-06-29 | 2020-01-07 | 普拉特 - 惠特尼加拿大公司 | Propeller blade synchronous phasing using tone wheels |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8683866B2 (en) | Method of matching sensors in a multi-probe turbine blade vibration monitor | |
| EP2547893B1 (en) | Determining fan parameters through pressure monitoring | |
| EP2870346B1 (en) | Advanced tip-timing measurement blade mode identification | |
| EP2887027B1 (en) | Active measurement of gas flow velocity or simultaneous measurement of velocity and temperature, including in gas turbine combustors | |
| CN101907486B (en) | Lateral, angular and torsional vibration monitoring of rotordynamic systems | |
| US10577078B2 (en) | Systems and methods for electronic measurement of propeller blade angle | |
| CN105716779A (en) | Dynamic pressure blade type probe | |
| CA2141544A1 (en) | Process and device for monitoring and for controlling of a compressor | |
| JP2824523B2 (en) | Method and apparatus for measuring fatigue of vibrating member | |
| JP5293406B2 (en) | Noncontact blade vibration measurement method for rotor blades | |
| MX2010008512A (en) | Systems and methods for mitigating the effects of wind turbines on radar. | |
| CN101476538A (en) | Individual blade noise measurement system and method for wind turbines | |
| CN109297625B (en) | Rotor blade surface dynamic pressure measuring system based on phase locking method | |
| CN103620355B (en) | For measuring the equipment by the time and the method for blade tip in turbine engine | |
| CN112557689A (en) | Rotational speed comprehensive measurement device based on asymmetric structure tone wheel | |
| JP3038382B1 (en) | Rotating blade vibration measurement device | |
| CN111982369B (en) | Output shaft torsion measuring method | |
| CN113670564A (en) | Combined probe and method for measuring flow field of interstage tip region of small compressor | |
| CN103206461A (en) | Method for eliminating axial thermal expansion generated by high-speed matched angular contact ball bearing | |
| CN107923257A (en) | Drive ring offset sensing system, compressor and gas turbine | |
| JP2016524080A (en) | Turbine and friction detection method | |
| WO1982001416A1 (en) | Method and apparatus for detecting and identifying excessively vibrating blades of a turbomachine | |
| CN106840511B (en) | Cone head four-hole dynamic pressure probe for measuring high subsonic three-dimensional unsteady flow | |
| CN113959722B (en) | Torque-pitch-phase angle-rotating speed integrated measurement device and method based on tone wheel | |
| US20160319695A1 (en) | System and methods for determining blade clearance for asymmertic rotors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210326 |