CN203163722U - Vibrating wire type level detection device - Google Patents
Vibrating wire type level detection device Download PDFInfo
- Publication number
- CN203163722U CN203163722U CN 201220684343 CN201220684343U CN203163722U CN 203163722 U CN203163722 U CN 203163722U CN 201220684343 CN201220684343 CN 201220684343 CN 201220684343 U CN201220684343 U CN 201220684343U CN 203163722 U CN203163722 U CN 203163722U
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- CN
- China
- Prior art keywords
- permanent magnet
- sensitive mass
- annular
- detection device
- level detection
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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 discloses a vibrating wire type level detection device which is capable of detecting both the inclined angle and the inclined direction of a to-be-detected platform. The level detection device is characterized in that a magnetic levitation bearing is arranged in the center of the bottom surface of a shell; an annular exciting coil and an annular permanent magnet are arranged inside the shell by jointly taking the magnetic levitation bearing as a shaft; one end of a vibrating wire is fixed on a rotor of the magnetic levitation bearing; the other end of the vibrating wire is fixed on a sensitive mass block; a permanent magnet is arranged at the bottom surface of the sensitive mass block; the repulsive force between the permanent magnet and the annular permanent magnet enables the sensitive mass block to be at a friction-free support state; and an inclined direction measuring system is formed by a laser on the sensitive mass block and an annular laser sensor on the inner side surface of the shell. The level detection device is low in mechanical friction, high in measuring accuracy, simple in structure, and applicable to detecting the level degree of an instrument platform.
Description
Technical field
The utility model relates to a kind of level detection device, is a kind of level detection device of type vibration wire specifically.
Background technology
At present, existing type vibration wire level detection device can only detect the angle of inclination of platform to be measured, can not detect its vergence direction, according to the needs of actual measurement, be necessary to develop a kind of angle of inclination that can detect platform to be measured, can detect the level detection device of its vergence direction again.
Summary of the invention
The purpose of this utility model provides a kind of angle of inclination that can detection platform, can detect the type vibration wire level detection device of its vergence direction simultaneously again.
In order to achieve the above object, the technical solution of the utility model is: the type vibration wire level detection device, formed by housing, annular permanent magnet, annular drive coil, magnetic suspension bearing, vibratory string, sensitive mass, permanent magnet, laser instrument, loop laser sensor, its architectural feature is: magnetic suspension bearing is installed on the bottom center position of housing, annular drive coil and annular permanent magnet are with the magnetic suspension bearing being the inside that axle is installed on housing, and annular drive coil is positioned at inner ring, and annular permanent magnet is positioned at the outer ring; One end of vibratory string is fixed on the rotor of magnetic suspension bearing, and the other end is fixed on the sensitive mass, and the length of vibratory string guarantee the horizontal equilibrium position of sensitive mass be positioned at annular permanent magnet directly over; A permanent magnet is installed in the bottom surface of sensitive mass, and its pole orientation is opposite with the pole orientation of annular permanent magnet, and making sensitive mass be in does not have the friction bearing state; The lateral surface of sensitive mass is installed a laser instrument, and the medial surface of housing is installed a loop laser sensor, judges the vergence direction of platform according to the light receiving position of this loop laser sensor, and shows by measurement mechanism.
The beneficial effects of the utility model are: the use of permanent magnet, annular permanent magnet and magnetic suspension bearing, reduced the mechanical friction of system, and improved the measuring accuracy of device; This device not only can detection platform the angle of inclination, can also detect its vergence direction; This device also has advantages such as simple in structure, cheap, easy to use simultaneously.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the longitudinal profile structural map of the utility model type vibration wire level detection device.
Fig. 2 is the vertical view of the utility model type vibration wire level detection device.
Among the figure: 1, housing, 2, annular permanent magnet, 3, annular drive coil, 4, magnetic suspension bearing, 5, vibratory string, 6, sensitive mass, 7, permanent magnet, 8, laser instrument, 9, the loop laser sensor.
Embodiment
As shown in Figure 1 and Figure 2, magnetic suspension bearing 4 is installed on the bottom center position of housing 1, annular permanent magnet 2 and annular drive coil 3 be with magnetic suspension bearing 4 serve as an inside that is installed on housing 1, and annular drive coil 3 is positioned at inner ring, and annular permanent magnet 2 is positioned at the outer ring; One end of vibratory string 5 is fixed on the rotor of magnetic suspension bearing 4, and the other end is fixed on the sensitive mass 6, the length of vibratory string 5 guarantee the horizontal equilibrium position of sensitive mass 6 be positioned at annular permanent magnet 2 directly over; Permanent magnet 7 is installed in the bottom surface of sensitive mass 6, and its pole orientation is opposite with the pole orientation of annular permanent magnet 2, and making sensitive mass 6 be in does not have the friction bearing state; The lateral surface of sensitive mass 6 is installed laser instrument 8, and the medial surface of housing 1 is installed annular laser sensor 9, and it can experience the light signal that laser instrument 8 sends.
This level detection device is placed on the platform to be measured, because the horizontal situation difference of platform, vibratory string 5 suffered tension force differences then, the principle that increases with its suffered tension force according to the natural frequency of vibratory string 5, its natural frequency value is also different thereupon, with annular drive coil 3 excitation vibratory strings 5, its natural frequency value is converted into angle value by metering circuit, can record the angle of inclination of platform to be measured; Sensitive mass 6 relies on self gravitations to rotate to the vergence direction of platform to be measured, can judge the vergence direction of platform to be measured according to the sensitization position of loop laser sensor 9, and it is shown by metering circuit.
Claims (2)
1. type vibration wire level detection device, formed by housing, annular permanent magnet, annular drive coil, magnetic suspension bearing, vibratory string, sensitive mass, permanent magnet, laser instrument, loop laser sensor, it is characterized in that: magnetic suspension bearing is installed on the bottom center position of housing, annular drive coil and annular permanent magnet are with the magnetic suspension bearing being the inside that axle is installed on housing, and annular drive coil is positioned at inner ring, and annular permanent magnet is positioned at the outer ring; One end of vibratory string is fixed on the rotor of magnetic suspension bearing, and the other end is fixed on the sensitive mass, and the length of shuttle belt guarantee the horizontal equilibrium position of sensitive mass be positioned at annular permanent magnet directly over; A permanent magnet is installed in the bottom of sensitive mass, and its pole orientation is opposite with the pole orientation of annular permanent magnet, and making sensitive mass be in does not have the friction bearing state.
2. type vibration wire level detection device according to claim 1, it is characterized in that: the lateral surface of sensitive mass is installed a laser instrument, the medial surface of housing is installed a loop laser sensor, and this loop laser sensor can be experienced the light signal that laser instrument sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684343 CN203163722U (en) | 2012-12-05 | 2012-12-05 | Vibrating wire type level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684343 CN203163722U (en) | 2012-12-05 | 2012-12-05 | Vibrating wire type level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163722U true CN203163722U (en) | 2013-08-28 |
Family
ID=49024900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684343 Expired - Fee Related CN203163722U (en) | 2012-12-05 | 2012-12-05 | Vibrating wire type level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203163722U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238230A (en) * | 2018-07-17 | 2019-01-18 | 中铁大桥勘测设计院集团有限公司 | One kind being based on maglev dip measuring device and measurement method |
| CN110645959A (en) * | 2018-06-26 | 2020-01-03 | 晶翔机电股份有限公司 | Surface slope discriminating device and discriminating method thereof |
| CN111256656A (en) * | 2020-02-27 | 2020-06-09 | 福建中研机电科技有限公司 | Multistage variable air volume motor fan blade calibration device and method |
-
2012
- 2012-12-05 CN CN 201220684343 patent/CN203163722U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645959A (en) * | 2018-06-26 | 2020-01-03 | 晶翔机电股份有限公司 | Surface slope discriminating device and discriminating method thereof |
| CN110645959B (en) * | 2018-06-26 | 2022-02-01 | 晶翔机电股份有限公司 | Surface slope discriminating device and discriminating method thereof |
| CN109238230A (en) * | 2018-07-17 | 2019-01-18 | 中铁大桥勘测设计院集团有限公司 | One kind being based on maglev dip measuring device and measurement method |
| CN109238230B (en) * | 2018-07-17 | 2021-02-09 | 中铁大桥勘测设计院集团有限公司 | Inclination angle measuring device and method based on magnetic suspension |
| CN111256656A (en) * | 2020-02-27 | 2020-06-09 | 福建中研机电科技有限公司 | Multistage variable air volume motor fan blade calibration device and 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: 20130828 Termination date: 20141205 |
|
| EXPY | Termination of patent right or utility model |