CN202216964U - Redundant rotation speed sensor - Google Patents
Redundant rotation speed sensor Download PDFInfo
- Publication number
- CN202216964U CN202216964U CN2011203672267U CN201120367226U CN202216964U CN 202216964 U CN202216964 U CN 202216964U CN 2011203672267 U CN2011203672267 U CN 2011203672267U CN 201120367226 U CN201120367226 U CN 201120367226U CN 202216964 U CN202216964 U CN 202216964U
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- magnet steel
- mount pad
- rotating shaft
- bearing
- end cap
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Abstract
The utility model belongs to a measurement technique, and relates to an improvement of a Hall element rotation speed sensor, in particular to a redundant rotation speed sensor. The redundant rotation speed sensor comprises one to three pairs of steel magnets (4) and two to four Hall circuits (5), and is characterized in that: the redundant rotation speed sensor is provided with a housing and a rotary shaft (3), a mounting base (1) is connected with an end cover (2) to form the housing, the rotary shaft (3) is mounted in the housing through bearings, the steel magnets (4) are circumferentially and evenly mounted on the cylindrical surface of the middle part of the rotary shaft (3), and the Hall circuits (5) are circumferentially and evenly stuck at positions on the inner cylindrical wall of the mounting base (1), which correspond to the steel magnets (4). The redundant rotation speed sensor is convenient to mount, can guarantee the precision of the space between the steel magnets and the Hall circuits, has redundancy, and meets the requirement of air survey.
Description
Technical field
The utility model belongs to measuring technique, relates to the improvement to the Hall element speed probe.
Background technology
Existing Hall element speed probe all is the branch body structure, and magnet steel and Hall circuit are released state.During use, magnet steel is pasted on the turning axle, Hall circuit is fixed near the stationary object the turning axle.Its shortcoming is: install inconvenient; The spacing of magnet steel and Hall circuit is difficult to guarantee; Do not have remaining, can not satisfy the requirement of airborne survey.
Summary of the invention
The purpose of the utility model is: a kind of redundance speed probe of being convenient to install, can guarantee the spacing of magnet steel and Hall circuit is provided, to satisfy the requirement of airborne survey.
The technical scheme of the utility model is: a kind of redundance speed probe, comprise magnet steel 4 and Hall circuit 5, and it is characterized in that; A housing that is connected to form by mount pad 1 and end cap 2 is arranged and through the rotating shaft 3 of Bearing Installation on housing, mount pad 1 is the cylinder that a left end opens wide, right-hand member has closure fange 1a, flange 1a near the position of circumference the screw hole that is uniformly distributed along the circumference is arranged; There is bearing seat at center at flange 1a; Mount pad bearing 1b is positioned at above-mentioned bearing seat, and end cap 2 is circular slabs, and end cap 2 is sealed on the left port of mount pad 1 and the left side through screw and mount pad 1 is connected to integral body; At the center of end cap 2 the end-cover axle bearing is arranged; End cap bearing 2a is positioned at the end-cover axle bearing, and rotating shaft 3 is positioned at mount pad 1, and the right-hand member of rotating shaft 3 combines with the inner ring of mount pad bearing 1b; The center pit that the left end of rotating shaft 3 passes end cap bearing 2a inner ring reaches the left side of end cap 2; On the face of cylinder at rotating shaft 3 middle parts, being uniformly distributed along the circumference is equipped with 1～3 pair of magnet steel 4, all magnet steel 4 measure-alike, and the magnetic pole of adjacent two magnet steel 4 is opposite; On the inwall of mount pad 1 cylinder, be bonded with 2～4 Hall circuits 5 that are uniformly distributed along the circumference with magnet steel 4 corresponding positions, the extension line of Hall circuit 5 is drawn out to the outside of mount pad 1 cylinder through the fairlead on mount pad 1 cylinder side wall.
The utility model has the advantages that: be convenient to install, can guarantee the precision of the spacing of magnet steel and Hall circuit, have redundance, satisfied the requirement of airborne survey.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Explain further details in the face of the utility model down.Referring to Fig. 1, a kind of redundance speed probe comprises magnet steel 4 and Hall circuit 5; It is characterized in that a housing that is connected to form by mount pad 1 and end cap 2 being arranged and through the rotating shaft 3 of Bearing Installation on housing, mount pad 1 is the cylinder that a left end opens wide, right-hand member has closure fange 1a; Flange 1a near the position of circumference the screw hole that is uniformly distributed along the circumference is arranged, at the center of flange 1a bearing seat is arranged, mount pad bearing 1b is positioned at above-mentioned bearing seat; End cap 2 is circular slabs; End cap 2 is sealed on the left port of mount pad 1 and the left side through screw and mount pad 1 is connected to integral body, at the center of end cap 2 the end-cover axle bearing is arranged, and end cap bearing 2a is positioned at the end-cover axle bearing; Rotating shaft 3 is positioned at mount pad 1; The right-hand member of rotating shaft 3 combines with the inner ring of mount pad bearing 1b, and the center pit that the left end of rotating shaft 3 passes end cap bearing 2a inner ring reaches the left side of end cap 2, and on the face of cylinder at rotating shaft 3 middle parts, being uniformly distributed along the circumference is equipped with 1～3 pair of magnet steel 4; All magnet steel 4 measure-alike; The magnetic pole of adjacent two magnet steel 4 is opposite, and on the inwall of mount pad 1 cylinder, be bonded with 2～4 Hall circuits 5 that are uniformly distributed along the circumference with magnet steel 4 corresponding positions, the extension line of Hall circuit 5 is drawn out to the outside of mount pad 1 cylinder through the fairlead on mount pad 1 cylinder side wall.
Rotating shaft 3 is one of following situation with the syndeton of magnet steel 4:
(1) cross section of the position of installation magnet steel 4 is a regular polygon in rotating shaft 3, and its limit number equals the number of magnet steel 4, and magnet steel 4 is through being adhesively fixed on the center of each face of regular polygon;
The mounting hole that the position of (2) magnet steel 4 being installed in rotating shaft 3 has the quantity that is uniformly distributed along the circumference to equate with the number of magnet steel 4, the shape of mounting hole is identical with the cross sectional shape of magnet steel 4, and the above-mentioned mounting hole of magnet steel 4 embeddings is interior and be adhesively fixed.
Principle of work is: (1) magnet steel and Hall circuit are encapsulated in sensor internal; Be convenient to install; Guaranteed the range accuracy between the two simultaneously, prevented under height vibration situation, because magnet steel that variable in distance causes between the two and Hall circuit collision or the excessive generation dropout of distance.
(2) redundance magnet steel configuration, the time-delay in the time of can reducing the tach signal collection, quicker to the tracking of measurand; The redundance Hall circuit can be configured to different modes as requested, and series connection collection is successively carried out in the pulse of redundance Hall circuit output, can a nearly step improve the quick tracking to tested tach signal; The output of each remaining Hall circuit is gathered separately, then can be used as the redundance sensor, improve sensor reliability, reduce its failure probability, satisfy the requirement of aeronautical product to high reliability.
(3) the mechanical interface form of input rotating shaft can change as required, both can directly be connected with measurand; Also can realize remote collection, avoid in the aircraft improving sensor life-time and safeguarding with being convenient to such as the high temperature of engine or speed reduction unit, high vibration, high greasy dirt zone through changeover mechanism.
An embodiment of the utility model; On the face of cylinder at rotating shaft 3 middle parts, be uniformly distributed along the circumference 2 pairs of magnet steel 4 are installed; On the inwall of mount pad 1 cylinder, be bonded with 4 Hall circuits 5 that are uniformly distributed along the circumference with magnet steel 4 corresponding positions, magnet steel 4 is finished parts with Hall circuit 5.
Claims (2)
1. redundance speed probe; Comprise magnet steel [4] and Hall circuit [5], it is characterized in that a housing that is connected to form by mount pad [1] and end cap [2] is arranged and through the rotating shaft [3] of Bearing Installation on housing; Mount pad [1] is the cylinder that a left end opens wide, right-hand member has closure fange [1a]; Flange [1a] near the position of circumference the screw hole that is uniformly distributed along the circumference is arranged, at the center of flange [1a] bearing seat is arranged, mount pad bearing [1b] is positioned at above-mentioned bearing seat; End cap [2] is a circular slab; End cap [2] is sealed on the left port of mount pad [1] and the left side through screw and mount pad [1] is connected to integral body, at the center of end cap [2] the end-cover axle bearing is arranged, and end cap bearing [2a] is positioned at the end-cover axle bearing; Rotating shaft [3] is positioned at mount pad [1]; The right-hand member of rotating shaft [3] combines with the inner ring of mount pad bearing [1b], and the center pit that the left end of rotating shaft [3] passes end cap bearing [2a] inner ring reaches the left side of end cap [2], and on the face of cylinder at rotating shaft [3] middle part, being uniformly distributed along the circumference is equipped with 1～3 pair of magnet steel [4]; All magnet steel [4] measure-alike; The magnetic pole of adjacent two magnet steel [4] is opposite, and on the inwall of mount pad [1] cylinder, be bonded with 2～4 Hall circuits [5] that are uniformly distributed along the circumference with the corresponding position of magnet steel [4], the extension line of Hall circuit [5] is drawn out to the outside of mount pad [1] cylinder through the fairlead on mount pad [1] cylinder side wall.
2. redundance speed probe according to claim 1, rotating shaft [3] is one of following situation with the syndeton of magnet steel [4]:
(1) be regular polygon in the last cross section that the position of magnet steel [4] is installed of rotating shaft [3], its limit number equals the number of magnet steel [4], and magnet steel [4] is through being adhesively fixed on the center of each face of regular polygon;
(2) mounting hole that has the quantity that is uniformly distributed along the circumference to equate in the position that magnet steel [4] go up is installed in rotating shaft [3] with the number of magnet steel [4], the shape of mounting hole is identical with the cross sectional shape of magnet steel [4], and the above-mentioned mounting hole of magnet steel [4] embedding is interior and be adhesively fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203672267U CN202216964U (en) | 2011-09-26 | 2011-09-26 | Redundant rotation speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203672267U CN202216964U (en) | 2011-09-26 | 2011-09-26 | Redundant rotation speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216964U true CN202216964U (en) | 2012-05-09 |
Family
ID=46016212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203672267U Expired - Fee Related CN202216964U (en) | 2011-09-26 | 2011-09-26 | Redundant rotation speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216964U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278657A (en) * | 2013-06-19 | 2013-09-04 | 中国石油大学(华东) | Rotation speed measuring mechanism for stabilized platform in dynamic directional rotary guiding drilling tool |
| CN106918791A (en) * | 2017-04-27 | 2017-07-04 | 东莞市格润超导科技有限公司 | A kind of magnetic field measuring device at magnet ends space |
| CN111693073A (en) * | 2020-06-28 | 2020-09-22 | 哈尔滨理工大学 | Bidirectional redundant magnetoelectric encoder and redundancy detection method thereof |
| CN114112289A (en) * | 2021-10-14 | 2022-03-01 | 西安航天动力试验技术研究所 | Blade type rotating test piece rotating speed measuring device and measuring system and method thereof |
-
2011
- 2011-09-26 CN CN2011203672267U patent/CN202216964U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278657A (en) * | 2013-06-19 | 2013-09-04 | 中国石油大学(华东) | Rotation speed measuring mechanism for stabilized platform in dynamic directional rotary guiding drilling tool |
| CN103278657B (en) * | 2013-06-19 | 2015-08-05 | 中国石油大学(华东) | The tachometric survey mechanism of stable platform in dynamic guiding type rotary steering drilling tool |
| CN106918791A (en) * | 2017-04-27 | 2017-07-04 | 东莞市格润超导科技有限公司 | A kind of magnetic field measuring device at magnet ends space |
| CN111693073A (en) * | 2020-06-28 | 2020-09-22 | 哈尔滨理工大学 | Bidirectional redundant magnetoelectric encoder and redundancy detection method thereof |
| CN111693073B (en) * | 2020-06-28 | 2022-01-25 | 哈尔滨理工大学 | Bidirectional redundant magnetoelectric encoder and redundancy detection method thereof |
| CN114112289A (en) * | 2021-10-14 | 2022-03-01 | 西安航天动力试验技术研究所 | Blade type rotating test piece rotating speed measuring device and measuring system and method thereof |
| CN114112289B (en) * | 2021-10-14 | 2024-02-06 | 西安航天动力试验技术研究所 | Vane type rotation test piece rotating speed measuring device and measuring system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AVIC XI'AN AUTOMATIC CONTROL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NO.618 RESEARCH INSTITUTE OF CHINA AVIATION INDUSTRY Effective date: 20140318 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140318 Address after: 710065 Xi'an, Shaanxi, No. 1 electronic road, No. 92 Patentee after: AVIC Xi'an Automatic Control Technology Co., Ltd. Address before: Yanta District electronic road 710065 Shaanxi city of Xi'an Province, No. 92 Patentee before: No.618 Research Institute of China Aviation Industry |
|
| 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: 20120509 Termination date: 20180926 |