CN102565449A - Double-section type four-redundancy airplane wheel velocity sensor - Google Patents
Double-section type four-redundancy airplane wheel velocity sensor Download PDFInfo
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- CN102565449A CN102565449A CN2012100021761A CN201210002176A CN102565449A CN 102565449 A CN102565449 A CN 102565449A CN 2012100021761 A CN2012100021761 A CN 2012100021761A CN 201210002176 A CN201210002176 A CN 201210002176A CN 102565449 A CN102565449 A CN 102565449A
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Abstract
The invention provides a double-section type four-redundancy airplane wheel velocity sensor. A permanent magnet type sensor assembly is positioned at an inner gear ring of a casing and installed at a hole bottom of a big inside diameter hole of the casing; a dust ring, a spring and a bearing are positioned in a small inside diameter hole of the casing, and the bearing is installed at one end of the small inside diameter hole of the casing; a fluted disc of an excitation rotor assembly is installed in an inner hole of a gear ring; the end surface at one end of a magnetizer is contacted with one end surface of the gear ring, and the other end of the magnetizer is positioned at a bearing pedestal of a small bearing; a coil assembly is installed in an inner hole of the magnetizer; a magnetism isolating supporting ring is installed in a big sleeve; the big sleeve is installed in inner holes of the magnetism isolating supporting ring and the magnetism isolating bearing pedestal; and a small sleeve is fixed at the end socket of a shaft. The double-section type four-redundancy airplane wheel velocity sensor provided by the invention is flexible in control mode, quick in response, and convenient for collection and treatment of velocity signals, brings convenience for operation of a pilot, meets requirements of different braking systems for signal collection, has wide application range, long service life, high sensitivity, excellent output characteristic, stability and reliability, and has the advantages of compact structure, convenience for dismantling, simplicity of maintenance and low manufacturing cost.
Description
Technical field
The present invention relates to the Aircraft Anti-skid Break Control field, specifically is a kind of double-joint type four remaining wheel spin-up transducers.
Background technology
Along with aircraft improves constantly security requirement, there is the anti-skid brake system (ABS) of material impact just to seem more and more important to aircraft safety, present nearly all aircraft has all been installed anti-skid brake system (ABS); Wheel spin-up transducer is as a vitals of electronic anti-skid braking system; Be used to experience the speed of wheel and produce the frequency signal that is directly proportional with the wheel rate signal, offer controller, compare according to frequency signal what and reference velocity by controller; Determine whether braking; This shows that the quality of wheel spin-up transducer has material impact to the operate as normal of brake system.
The speed pickup of tradition brake system is generally inertial sensor; Mainly form by flywheel, ball, lining, volute spring, push rod and rocking arm, pull bar, oil-feed needle-valve and the needle-valve of draining the oil; Complex structure and do not have remaining; Dynamic response is low, measuring accuracy is low, does not generally have remaining, only is used on the aircraft that the inertia anti-skid brake system (ABS) is housed.Excitation sensor or magneto sensor generally are housed being equipped with on the aircraft of electronic anti-skid braking system, for the excitation sensor, must have the external power supply powered products to work, can't satisfy under the aircraft powering-off state collection speed.Though the magneto sensor does not need external power supply, owing to receive the restriction of magnet steel restricted volume to have low speed amplitude problem of lower, no matter which kind of sensor; Also only can realize two remaining signals collecting; Satisfied not different brake system needs, range of application is less, and adaptability is relatively poor.
Summary of the invention
For overcoming the complicated difficult processing of the structure that exists in the prior art, dynamic response is low, measuring accuracy is low, and product does not have remaining, and range of application is less, and the deficiency that adaptability is relatively poor the present invention proposes a kind of double-joint type four remaining wheel spin-up transducers.
The present invention includes housing, shift fork, spring, bearing, ring gear, excitation rotor assembly, coil block, magnetic conductor, bearing seat, separated magnetic axis bolster, magneto sensor module, electric connector, p-m rotor assembly, big sleeve, magnetism isolating spacer ring, little bearing, small sleeve; The magneto sensor module is positioned at housing, and is in housing electric connector one end is arranged, and ring gear is installed at the bottom of the hole in housing large diameter hole; Dust ring, spring, bearing are positioned at the little inner diameter hole of housing, little inner diameter hole one end of the housing of Bearing Installation; The little internal diameter internal circular surfaces of the outer round surface of the outer round surface of bearing and housing and between equal interference fit; End face of bearing is pressed on the end face of ring gear, and another end face of bearing is pressed on the spring; Elastic collar is stuck in the groove of little inner diameter hole one end of housing; The excitation rotor assembly is positioned at housing; And the fluted disc of this excitation rotor assembly is installed in the endoporus of ring gear; Be arranged in the said fluted disc one end end face excitation rotor assembly axle brearing bore of packing into, the axle that is arranged in the said fluted disc other end endoporus of coil block of packing into links to each other with axle on the p-m rotor assembly; The bearing seat of magnetic conductor, separated magnetic axis bolster, magnetism isolating spacer ring and magneto sensor module are installed in the endoporus of housing successively, are clearance fit between the large diameter internal circular surfaces of the outer round surface of above-mentioned each part and housing; Magnetic conductor one end end face contacts with an end face of ring gear; The magnetic conductor other end is positioned at the bearing seat place of little bearing; Coil block is packed in the endoporus of magnetic conductor; An end face of bearing seat contacts with an end face of magnetic conductor; Another end face of bearing seat contacts with an end face of magnetism isolating spacer ring; Said magnetism isolating spacer ring is installed in the big sleeve; An end face at a distance from the magnetic axis bolster contacts with another end face of magnetism isolating spacer ring; Another end face at a distance from the magnetic axis bolster contacts with the end face of magneto sensor module; Big sleeve is installed in magnetism isolating spacer ring and the separated endoporus of magnetic axis bolster; Electric connector is fixed on the outer face of magneto sensor module; Shift fork is fixed on the termination of axle, and small sleeve is fixed on the termination of axle.
Said excitation rotor assembly comprises axle and fluted disc; Be evenly equipped with several teeth that matches with tooth on the ring gear internal circular surfaces on the card excircle of said fluted disc; Center in another card of fluted disc card is connected with axle.
The external diameter of dish axle is identical on the internal diameter of the center pit of magnetic conductor and the excitation rotor assembly; On the housing of said magnetic conductor, have the ring groove of hookup wire coil assembly.
Be evenly equipped with several teeth at the ring gear internal circular surfaces; Gapped between the tooth top surface of said ring gear and the tooth top surface of fluted disc, and when the initial position that ring gear and fluted disc cooperatively interact, the tooth top of ring gear is relative with the tooth top of fluted disc.
Maximum diameter of hole at a distance from magnetic axis bolster endoporus is identical with the maximum outside diameter of big sleeve, and the small-bore end is a p-m rotor assembly via hole, and symmetry has Wire channel in building on the cylindrical.
The maximum diameter of hole of housing endoporus and ring gear, magnetic conductor, bearing seat, identical at a distance from the maximum outside diameter of magnetic axis bolster, magnetism isolating spacer ring and magneto sensor module; The small-bore of the endoporus of this housing is identical with the external diameter of bearing; The end face that housing and bearing are adjacent is this housing and wheel axle flange connecting dish; The inside surface that magneto sensor module one end is installed in said housing has the wire casing that goes out with the housing shaft line parallel;
In axle and the scolder outlet cruciferous of fluted disc fixed connecting end; The circumferential surface of the axle other end is a flank of thread, and on this flank of thread, has keyway.
Rotor assembly of the present invention is joined together by axle and fluted disc, and the drive unit that is connected with shift fork on the incorporating mill wheel through key on the axle is meshed.The axle that the fluted disc miner diameter end passes on coil block endoporus and the p-m rotor assembly links to each other; Coil block and magneto sensor module all adopt two remaining designs, can export four road signals simultaneously., axle is being with the excitation rotor assembly to rotate together when rotating under wheel drives; Along with fluted disc tooth on the rotor and ring gear tooth relatively with stagger; Tooth asks that magnetic resistance constantly changes; Cause the change of magnetic flux, the magnetic flux of variation is responded to the generation sine voltage signal on coil block, and the frequency of sinusoidal signal is directly proportional with the wheel velocity of rotation.
When the present invention has external power source at work sine voltage signal can be provided, no external power source can play the effect of small-sized variable reluctance generator when being the sensor power supply, also sine voltage signal can be provided.During work, as long as wheel rotates, the sensor that is installed on the wheel just can produce the output signal that is directly proportional with wheel speed; In order to satisfy the redundance requirement, coil block and magneto sensing coil assembly are two remainings, have realized the redundance design of product; When speed pickup during by the wheel driven rotary; On the ring gear with fluted disc on rectangular teeth aim at, depart from alternately and to take place, cause the magnetic resistance cyclical variation in the closed magnetic circuit, the magnetic flux in the magnetic circuit also changes thereupon synchronously; So on coil, produce the induced voltage of a near sinusoidal variation identical with the magnetic resistance change rate frequency, obtaining being directly proportional with the wheel rotating speed has the frequency signal of certain voltage.
Because the present invention adopts the redundance design, the output signal is many, is convenient to realize hyperchannel control, and reliability is high, can satisfy the collection of different brake system to signal, long, highly sensitive, good output and reliable and stable of life-span applied widely.No matter it is the sensor power supply that the present invention has or not external power source, sensor all can be worked, and control mode is more flexible, and response is fast, is convenient to aircraft rate signal is gathered, handled, and the pilot can conveniently be operated; Be directly installed in the wheel end cap, need not wheel is done any change.Compact conformation of the present invention, convenient disassembly is safeguarded simply low cost of manufacture.
Description of drawings
Accompanying drawing 1 is the structural representation of double-joint type four remaining wheel spin-up transducers.
Accompanying drawing 2 is structural representations of housing.
Accompanying drawing 3 is structural representations of shift fork.
Accompanying drawing 4 is side views of accompanying drawing 3.
Accompanying drawing 5 is structural representations of excitation rotor assembly.
Accompanying drawing 6 is structural representations of magnetic conductor.
Accompanying drawing 7 is structural representations of coil block.
Accompanying drawing 8 is structural representations of bearing seat.
Accompanying drawing 9 is the structural representations at a distance from the magnetic axis bolster.Wherein:
1. housing 2. shift forks 3 nuts 4 keys 5 elastic collars 6 dust rings 7 springs 8 bearings 9 ring gears 10 excitation rotor assemblies 11 coil blocks 12 magnetic conductors 13 bearing seats 14 are at a distance from 23 24 fluted discs of magnetic axis bolster 15 magneto sensor modules, 16 electric connector 17 p-m rotor assemblies, 18 big sleeve 19 magnetism isolating spacer ring 20 semicircle pins, 21 little bearing 22 small sleeves, 25 field coil skeletons, 26 enameled wires, 27 insulation films, 28 fluoroplastic leads
Embodiment
Present embodiment is a kind of wheel spin-up transducer that is used for certain system.
Present embodiment comprises housing 1, shift fork 2, nut 3, key 4, elastic collar 5, dust ring 6, spring 7, bearing 8, ring gear 9, excitation rotor assembly 10, coil block 11, magnetic conductor 12, bearing seat 13, separated magnetic axis bolster 14, magneto sensor module 15, electric connector 16, p-m rotor assembly 17, big sleeve 18, magnetism isolating spacer ring 19, semicircle pin 20, little bearing 21, small sleeve 22.
As shown in Figure 2, housing 1 is the carrier of present embodiment.Housing 1 is the hollow solid of revolution, and endoporus is stepped;
The maximum diameter of hole of housing 1 endoporus and ring gear 9, magnetic conductor 12, bearing seat 13, identical at a distance from the maximum outside diameter of magnetic axis bolster 14, magnetism isolating spacer ring 19 and magneto sensor module 15.The small-bore of the endoporus of this housing 1 is identical with the external diameter of bearing 8.Housing 1 is this housing 1 and wheel axle flange connecting dish with bearing 8 adjacent end faces.
The inside surface that magneto sensor module 15 1 ends are installed in said housing has the wire casing that goes out with the housing shaft line parallel.Magneto sensor module 15 is positioned at housing, and is in housing electric connector 16 1 ends, the rotating shaft of this magneto sensor module 15 are arranged.
Said excitation rotor assembly 10 comprises axle 23 and fluted disc 24.Fluted disc 24 is " T " shape structure, is made up of dish axle and card.Be evenly equipped with several teeth on the card excircle of said fluted disc 24, space width is 1.5mm, and the facewidth is 2mm, and tooth depth is 0.5mm; The quantity of said tooth requires to confirm that in the present embodiment, the quantity of tooth is 50 according to system testing.Tooth on fluted disc 24 excircles and the tooth on the ring gear internal circular surfaces match, and produce magnetic resistance change rate through when dislocation at the bottom of the tooth top tooth.A said center that is positioned at a card and vertical each other of coiling with card; The axle head head of this dish axle links to each other with the axle of p-m rotor assembly 17.The blind hole that coupling shaft 23 is arranged at the center of another card of fluted disc 24 cards; The axle head of said axle 23 is packed in this blind hole and is affixed.
On the circumference of axle 23 and fluted disc 24 fixed connecting ends, radially through hole is arranged, axially extended blind hole is arranged, and this blind hole is communicated with radially through hole on fluted disc 24 circumference, constituted criss-cross scolder and exported at the end center of axle 23 and fluted disc 24 fixed connecting ends.Circumferential surface at axle 23 other ends is a flank of thread, and on this flank of thread, has the mounting groove with key 4.
At a distance from magnetic axis bolster 14 is a hollow solid of revolution, and endoporus is stepped.The maximum diameter of hole of endoporus is identical with the maximum outside diameter of big sleeve 18, and the small-bore end is p-m rotor assembly 17 via holes, and symmetry has groove on the cylindrical, is used for threading.
Bearing 8, spring 7 dust rings, 6 elastic collars 5 and housing 1 pass successively with the axle 23 of excitation rotor assembly 10 in elder generation during assembling, and pass through 4 pairs of bearings 8 of key and housing 1 axial location, and then other parts are packed into successively.
The double-joint type four remaining wheel spin-up transducer courses of work do; When the gear train that is connected with shift fork 2 rotates, drive shift fork 2 and rotate together, the excitation rotor assembly 10 that is connected with shift fork 2 also rotates thereupon; Also driving simultaneously p-m rotor assembly 17 rotates; Make the fluted disc 24 on the excitation rotor assembly 10 aim at, depart from alternately generation with the rectangular teeth on the ring gear 9 on the one hand, cause the magnetic resistance cyclical variation in the closed magnetic circuit, the magnetic flux in the magnetic circuit also changes thereupon synchronously; So on coil, produce the induced voltage that a near sinusoidal identical with the magnetic resistance change rate frequency changes; Obtaining being directly proportional with the wheel rotating speed has the frequency signal of certain voltage, simultaneously with the rotation of p-m rotor assembly 17, also obtains the frequency signal that other one group of magneto sensor module 15 produces.
Claims (7)
1. double-joint type four remaining wheel spin-up transducers; It is characterized in that housing, shift fork, dust ring, spring, bearing, ring gear, excitation rotor assembly, coil block, magnetic conductor, bearing seat, separated magnetic axis bolster, magneto sensor module, electric connector, p-m rotor assembly, big sleeve, magnetism isolating spacer ring, little bearing, small sleeve; The magneto sensor module is positioned at housing, and is in housing electric connector one end is arranged, and ring gear is installed at the bottom of the hole in housing large diameter hole; Dust ring, spring, bearing are positioned at the little inner diameter hole of housing, little inner diameter hole one end of the housing of Bearing Installation; The little internal diameter internal circular surfaces of the outer round surface of the outer round surface of bearing and housing and between equal interference fit; End face of bearing is pressed on the end face of ring gear, and another end face of bearing is pressed on the spring; Elastic collar is stuck in the groove of little inner diameter hole one end of housing; The excitation rotor assembly is positioned at housing; And the fluted disc of this excitation rotor assembly is installed in the endoporus of ring gear; Be arranged in the said fluted disc one end end face excitation rotor assembly axle brearing bore of packing into, the axle that is arranged in the said fluted disc other end endoporus of coil block of packing into, with the p-m rotor assembly on axle link to each other; The bearing seat of magnetic conductor, separated magnetic axis bolster, magnetism isolating spacer ring and magneto sensor module are installed in the endoporus of housing successively, are clearance fit between the large diameter internal circular surfaces of the outer round surface of above-mentioned each part and housing; Magnetic conductor one end end face contacts with an end face of ring gear; The magnetic conductor other end is positioned at the bearing seat place of little bearing; Coil block is packed in the endoporus of magnetic conductor; An end face of bearing seat contacts with an end face of magnetic conductor; Another end face of bearing seat contacts with an end face of magnetism isolating spacer ring; Said magnetism isolating spacer ring is installed in the big sleeve; An end face at a distance from the magnetic axis bolster contacts with another end face of magnetism isolating spacer ring; Another end face at a distance from the magnetic axis bolster contacts with the end face of magneto sensor module; Big sleeve is installed in magnetism isolating spacer ring and the separated endoporus of magnetic axis bolster; Electric connector is fixed on the outer face of magneto sensor module; Shift fork is fixed on the termination of axle, and small sleeve is fixed on the termination of axle.
2. a kind of according to claim 1 double-joint type four remaining wheel spin-up transducers is characterized in that, said excitation rotor assembly comprises axle and fluted disc; Be evenly equipped with several teeth that matches with tooth on the ring gear internal circular surfaces on the card excircle of said fluted disc; Center in another card of fluted disc card is connected with axle.
3. a kind of according to claim 1 double-joint type four remaining wheel spin-up transducers is characterized in that, the external diameter of dish axle is identical on the internal diameter of the center pit of magnetic conductor and the excitation rotor assembly; On the housing of said magnetic conductor, have the ring groove of hookup wire coil assembly.
4. a kind of according to claim 1 double-joint type four remaining wheel spin-up transducers is characterized in that, are evenly equipped with several teeth at the ring gear internal circular surfaces; Gapped between the tooth top surface of said ring gear and the tooth top surface of fluted disc, and when the initial position that ring gear and fluted disc cooperatively interact, the tooth top of ring gear is relative with the tooth top of fluted disc.
5. a kind of according to claim 1 double-joint type four remaining wheel spin-up transducers is characterized in that, identical with the maximum outside diameter of big sleeve at a distance from the maximum diameter of hole of magnetic axis bolster endoporus, the small-bore end is a p-m rotor assembly via hole, and symmetry has Wire channel in building on the cylindrical.
6. a kind of according to claim 1 double-joint type four remaining wheel spin-up transducers is characterized in that, the maximum diameter of hole of housing endoporus and ring gear, magnetic conductor, bearing seat, identical at a distance from the maximum outside diameter of magnetic axis bolster, magnetism isolating spacer ring and magneto sensor module; The small-bore of the endoporus of this housing is identical with the external diameter of bearing; The end face that housing and bearing are adjacent is this housing and wheel axle flange connecting dish; The inside surface that magneto sensor module one end is installed in said housing has the wire casing that goes out with the housing shaft line parallel;
7. like the said a kind of double-joint type four remaining wheel spin-up transducers of claim 2, it is characterized in that, in axle and the scolder outlet cruciferous of fluted disc fixed connecting end; The circumferential surface of the axle other end is a flank of thread, and on this flank of thread, has keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002176 CN102565449B (en) | 2012-01-05 | 2012-01-05 | Double-section type four-redundancy airplane wheel velocity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002176 CN102565449B (en) | 2012-01-05 | 2012-01-05 | Double-section type four-redundancy airplane wheel velocity sensor |
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| CN102565449A true CN102565449A (en) | 2012-07-11 |
| CN102565449B CN102565449B (en) | 2013-06-12 |
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| CN 201210002176 Expired - Fee Related CN102565449B (en) | 2012-01-05 | 2012-01-05 | Double-section type four-redundancy airplane wheel velocity sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897922A (en) * | 2015-06-29 | 2015-09-09 | 贵州新安航空机械有限责任公司 | Non-contact Hall magnetic induction-type airplane wheel speed sensor |
| CN105203791A (en) * | 2015-09-24 | 2015-12-30 | 西安航空制动科技有限公司 | Wrong-inserting preventing speed sensor |
| CN105841605A (en) * | 2016-04-25 | 2016-08-10 | 北京青云航空仪表有限公司 | Quad redundant angular displacement sensor |
| CN108037307A (en) * | 2017-12-14 | 2018-05-15 | 中国航空工业集团公司上海航空测控技术研究所 | Triplex redundance rotation-speed measuring device based on magneto-electronic theory |
| CN108761116A (en) * | 2018-07-27 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of hollow wheel spin-up transducer |
| CN109406821A (en) * | 2018-09-18 | 2019-03-01 | 贵州新安航空机械有限责任公司 | A kind of variable reluctance wheel speed sensors |
| CN110186685A (en) * | 2019-04-17 | 2019-08-30 | 重庆彤星科技有限公司 | A kind of automobile engine dynamic date reading device |
| CN115586344A (en) * | 2022-10-24 | 2023-01-10 | 中车资阳机车有限公司 | Axle box structure compatible with two speed sensors |
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| US5492417A (en) * | 1994-09-14 | 1996-02-20 | General Motors Corporation | Bearing and drive assembly with combined wheel speed sensor |
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2012
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| US5492417A (en) * | 1994-09-14 | 1996-02-20 | General Motors Corporation | Bearing and drive assembly with combined wheel speed sensor |
| CN1412564A (en) * | 2001-10-18 | 2003-04-23 | 日本精工株式会社 | Rotational speed sensor device |
| US20070089537A1 (en) * | 2005-09-22 | 2007-04-26 | Hideo Tawara | Structure of attaching a rotation-detecting sensor |
| CN101299048A (en) * | 2008-07-04 | 2008-11-05 | 嘉兴学院 | Rotating angular acceleration sensor |
Non-Patent Citations (1)
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| 温兴清等: "机轮防滑刹车控制方法的研究", 《飞机设计》, vol. 28, no. 1, 29 February 2008 (2008-02-29), pages 23 - 27 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897922A (en) * | 2015-06-29 | 2015-09-09 | 贵州新安航空机械有限责任公司 | Non-contact Hall magnetic induction-type airplane wheel speed sensor |
| CN104897922B (en) * | 2015-06-29 | 2017-12-05 | 贵州新安航空机械有限责任公司 | A kind of contactless Hall magnetic induction type wheel spin-up transducer |
| CN105203791A (en) * | 2015-09-24 | 2015-12-30 | 西安航空制动科技有限公司 | Wrong-inserting preventing speed sensor |
| CN105841605A (en) * | 2016-04-25 | 2016-08-10 | 北京青云航空仪表有限公司 | Quad redundant angular displacement sensor |
| CN108037307A (en) * | 2017-12-14 | 2018-05-15 | 中国航空工业集团公司上海航空测控技术研究所 | Triplex redundance rotation-speed measuring device based on magneto-electronic theory |
| CN108037307B (en) * | 2017-12-14 | 2024-02-13 | 中国航空工业集团公司上海航空测控技术研究所 | Three-redundancy rotating speed measuring device based on magnetoelectric principle |
| CN108761116A (en) * | 2018-07-27 | 2018-11-06 | 西安航空制动科技有限公司 | A kind of hollow wheel spin-up transducer |
| CN108761116B (en) * | 2018-07-27 | 2024-04-19 | 西安航空制动科技有限公司 | Speed sensor for hollow wheel |
| CN109406821A (en) * | 2018-09-18 | 2019-03-01 | 贵州新安航空机械有限责任公司 | A kind of variable reluctance wheel speed sensors |
| CN109406821B (en) * | 2018-09-18 | 2020-12-18 | 贵州新安航空机械有限责任公司 | Variable-reluctance wheel speed sensor |
| CN110186685A (en) * | 2019-04-17 | 2019-08-30 | 重庆彤星科技有限公司 | A kind of automobile engine dynamic date reading device |
| CN115586344A (en) * | 2022-10-24 | 2023-01-10 | 中车资阳机车有限公司 | Axle box structure compatible with two speed sensors |
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| CN102565449B (en) | 2013-06-12 |
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Granted publication date: 20130612 Termination date: 20140105 |