CN106151295A - Generator assembly - Google Patents

Generator assembly Download PDF

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Publication number
CN106151295A
CN106151295A CN201610474630.1A CN201610474630A CN106151295A CN 106151295 A CN106151295 A CN 106151295A CN 201610474630 A CN201610474630 A CN 201610474630A CN 106151295 A CN106151295 A CN 106151295A
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CN
China
Prior art keywords
generator
protuberance
coil
generator assembly
curvature
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.)
Granted
Application number
CN201610474630.1A
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Chinese (zh)
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CN106151295B (en
Inventor
T·塞尔万
A·C·范德汉姆
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SKF AB
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SKF AB
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Publication of CN106151295A publication Critical patent/CN106151295A/en
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Publication of CN106151295B publication Critical patent/CN106151295B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D43/00—Devices for using the energy of the movements of the vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/225—Detecting coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1846—Rotary generators structurally associated with wheels or associated parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1861—Rotary generators driven by animals or vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1869—Linear generators; sectional generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/10—Railway vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

The present invention relates to a kind of generator assembly, it obtains energy by interacting with rotary magnetic phonic wheel (16) in bearing arrangement, described generator assembly includes electromotor movement (18), it has curvature (20) and multiple is set to a row and from bar-shaped protuberance (the 22a 22d that curvature 20 is prominent on the longitudinal direction being basically perpendicular to described curvature, 24a 24c), wherein said bar-shaped protuberance (22a 22d, 24a 24c) there is end, it is configured to form gap with magnetic phonic wheel (16) respectively, electromotor movement (18) farther includes at least one generator coil (26a 26c), it is wound around at least one in described protuberance (24a 24c).Proposing and have the protuberance (24a 24c) of generator coil (26a 26c) and have the main part (25a 25c) of cylinder form, it is installed in generator coil (26a 26c).

Description

Generator assembly
Technical field
The present invention relates to a kind of generator assembly being used in bearing arrangement and include the bearing of such generator assembly Device.
Background technology
The present invention relates to a kind of generator assembly, it is for obtaining energy in bearing arrangement, and described bearing arrangement is by structure Make as being produced energy by the relative motion of the outer ring of bearing and the inner ring of this bearing.Different types of bearing is widely used in machinery Engineering field, and be to be required for, in many applications, the sensing element that is monitored.
In the great majority application of today, it is used for monitoring the electronic component of bearing and relevant sensor by wire or logical Cross external generator to power.But, document WO2013/160035 discloses the electric power being configured to be integrated in bearing assembly Producing assembly, wherein, described electric power produces assembly and interacts with magnet pulley, and magnet pulley includes the magnetic with alternant polarization direction Property polarization material.
Generator assembly is configured to monitor electronic component provides electric power, and described electronic component therefore can be with use nothing The external equipment of line signaling interface communicates.
Electric power in document WO2013/160035 produces assembly and includes electromotor movement and be wrapped in by Ferrite Material system The motor coil on movement become.Square coil manufactures more difficult/expensive than traditional cylindrical coil equally.
Summary of the invention
The present invention attempts providing a kind of generator assembly obtaining energy in bearing arrangement, and it has at manufacture and cost The electromotor movement that aspect is more superior.
The present invention is from the beginning of a kind of generator assembly obtaining energy in bearing arrangement, and it includes that at least two is constructed For the race ring relative to each other rotated.This generator assembly is designed to go up and by having be connected in race ring Rotary magnetic phonic wheel that the magnetic material in alternating magnetization direction makes or pulse wheel is had to interact.
Generator assembly includes movement, its have curvature and arrange in a row and from curvature with described yoke The multiple bar-shaped protuberance that the substantially vertical side of longitudinal direction of part projects upwards.
In this article statement " perpendicular " such structure should be included especially, wherein said protuberance towards The common axis of rotation side of bearing projects upwards, and therefore they are not completely parallel.
Baculum portion is provided with and is configured to form the end in gap with described phonic wheel respectively.This gap should be so , magnetic phonic wheel the magnetic field produced can easily pass through gap, and does not has heavy losses.This gap is according to the end of protuberance The diameter in face typically has the width of about 1-2 millimeter.Towards the diameter of the end face of the protuberance of phonic wheel preferably greater than described between The width of gap reaches at least one coefficient 5-10.Distance between the end of protuberance corresponds at least substantially and between magnetic phonic wheel The integral multiple of the half of spacing, the end face of the most neighbouring protuberance is respectively facing the district with the contrary phonic wheel direction of magnetization Territory.Additionally, electromotor movement includes at least one generator coil being wrapped at least one in the protuberance of movement.
The present invention proposes and is provided with the protuberance of generator coil and has the main part of cylinder, and it is installed to send out In motor coil.Therefore, it is possible to use the cost-effective cylindrical power generator coil that can be commercially available.In the present invention A preferred embodiment in, electromotor movement cylindrical in the middle of movement be installed to constitute movement and two of curvature In the C-shaped of horizontal protuberance or the steel part of U-shaped.
Additionally, also proposed, coil is cylindrical coil, and especially, this coil is wrapped in a cylindrical profiled member On, and be subsequently installed on the cylindrical part of in baculum portion.This is conducive to the group at gen-set Dress, and allow to use cost-effective preproduction coil.
In a preferred embodiment of the invention, at least one part of generator assembly, particularly cylinder-shaped body Part, is made up of ferrite.
Present invention further proposes, electromotor movement includes at least one protuberance being connected to have generator coil Main part axial end on pole shoe, wherein, the increase of the distance of the width of pole shoe to curvature and increase.Preferably Ground, each of end is provided with such pole shoe.Pole shoe is preferably made of steel.Depend on environment and specific application There is the part of more complicated geometry and be partially separated beneficially design to desired use from what there is simple geometric shape And adaptation.The shape and size of the end face of pole shoe are adaptable to the shapes and sizes of the magnetic pole of phonic wheel, and the main body of pole shoe can simultaneously To guide magnetic flux to the preferred cylindrical portion of protuberance with low-loss reliable fashion.It is not provided with the prominent of generator coil Going out portion can be by having rectangular cross section or other suitable cross section any is formed.
It was unexpectedly determined that it has been proved that when the movement using steel and ferrite part to be mixed, it is possible to achieve class It is similar to the performance of ferrite movement.Therefore, short iron ferrite can be avoided using in the part with complex geometric shapes, The cartridge assemblies being simultaneously used for electromotor can use reliable and certified technology with the shape that many is different at low cost Manufacture.Especially, the shape of steel part is designed such that the loss of magnetic flux can be avoided by, and can use simultaneously Cost-effective coil and realize simple installation process.The shape of steel core can also be designed to exist at pure iron oxysome The power of the excess produced at high speed in movement is reduced.
In a preferred embodiment of the invention, electromotor movement includes three ledges, wherein, described electromotor Coil is around a winding in the middle of these three protuberance.The overall structure of longitudinal curvature with three protuberances has The shape similar to letter " E ", therefore this structure is referred to as " E "-movement.By two laterally projecting portions of electromotor movement Magnetic flux will merge at central projection, and therefore cause sufficiently high faradic current in coil.
In a preferred embodiment of the invention, described electromotor movement includes not having the multiple prominent of generator coil Portion, is wherein provided with the protuberance being mounted with generator coil between every a pair of protuberance described later.Result be The pectinate texture of a generator coil it is provided with every a protuberance.The protuberance without generator coil can be with magnetic Yoke part be formed as with an entity or stacking steel disc.
The present invention utilizes the change of the magnetic flux density of magnetic phonic wheel, described magnetic phonic wheel to may be connected to a bearing unit On mobile ring.Owing to dynode can be cylindrical, pole shoe may be connected to described dynode to guide described magnetic flux. The iron content steel at least replacing ferrite use in some parts makes this technical scheme the firmest and cost-effective.Design The movement with more high output voltage and more high-output power can be to use the cost-effective mode quilt of simple rectification circuit Realize.
Present invention is particularly suitable for train bearing unit, described bearing unit needs by the most monitored, simultaneously by cruelly It is exposed under extreme evil slightly environmental condition.Described generator assembly can be embedded in a sealing of bearing unit, thus Can be protected for obtaining the electronic installation of the such as commutator of the energy produced in generator coil.
One further aspect of the present invention therefore relates to a kind of bearing unit, is particularly directed to train wheel Train bearing unit, its be provided with generator assembly as above and be arranged on bearing rotate circle on magnetic phonic wheel, and For the faradic current produced in generator coil being converted into electronic unit and the such as electricity of the such as rectification circuit of electric energy Container or the device for storing described energy of accumulator.Additionally, the bearing unit with generator assembly can be provided with Sensor and monitoring electronic component, the signal of evaluation and test sensor, and be provided with non-mandatorily for wirelessly transmitting Measure the device of the signal arrived.Described sensor signal can include rotary speed that phonic wheel measure, temperature are preferably used, and shakes Dynamic, acceleration etc..
The above embodiment of the present invention and appended claims and accompanying drawing show multiple characterizations of the present invention Feature and specifically combining.Technical staff can be easy to think the sub-portfolio of further combination or these features with Just make to invent the his or her particular demands of adaptation as defined in the claims.
Accompanying drawing explanation
Fig. 1 is the explanatory view of the bearing assembly including generator assembly according to the present invention；
Fig. 2 is the electromotor movement of the generator assembly according to the present invention in side view；
Fig. 3 is regarding of a protuberance of the electromotor movement according to Fig. 2, a generator coil, and a pole shoe Figure；
Fig. 4 is the side view of the electromotor movement of second embodiment according to the present invention；
The generator assembly according to one of Fig. 1-4 that Fig. 5 is mounted in housing；
Fig. 6 is the view of the assembling process illustrating the generator assembly according to Fig. 2；
Fig. 7 is the explanatory view of the generator assembly according to the present invention interacted with magnetic phonic wheel.
Detailed description of the invention
Fig. 1 is the sectional view of the details of bearing assembly, and described bearing assembly has an outer ring 10, inner ring 12 and be fixed to bearing The generator assembly 14 of non-rotating outer ring 10.One magnetic phonic wheel 16 is fixed to the temperature of inner ring during rotation 12 of bearing assembly, and it is by shape Become the double-row roller bearing used in train is applied.Inner ring 12 and rotating against of outer ring 10 cause generator assembly 14 He Rotating against of magnetic phonic wheel 16.Sealing system provides through two race rings 10, the sealing in the gap between 12, simultaneously magnetic phonic wheel 16 engage with the outside labyrinth of sealing system.Magnetic phonic wheel 16 is made up of the magnetic material with radially alternating polarised direction.Magnetic sound Wheel 16 can be made by permanent magnet material or by magnetic composite, such as, embedded in the plastics of magnetic material.
The electromotor movement 18 in generator assembly 14 according to the present invention is illustrated the most in more detail.Fig. 2 illustrates Having the electromotor movement 18 of so-called multistage-E-movement design, it has a pectinate texture, and this pectinate texture has one Individual bar-shaped curvature 20 and seven bar-shaped protuberance 22a-22d, 24a-24c.Four of protuberance 22a-22d are formed For having equidistant gap, it is substantially perpendicular to curvature 20 simultaneously and highlights.Part 22a of protuberance outermost, the length of 22d Than middle part 22b, 22c is the longest, simultaneously end face be tilt or bending so that at the protuberance 22a-of movement 18 The gap that width is equal is formed between end and the magnetic phonic wheel 16 of 22d, 24a-24d.Have generator coil 26a-26c enters one The protuberance 24a-24c of step is arranged between every a pair of these four protuberance 22a-22d, its respectively with curvature 20 1 Body is formed.As next will be described in further detail, last-mentioned protuberance 24a-24c passes through press-fit or screw thread Coordinate or other suitable modes are connected to curvature 20 and include the cylindrical body portion being made up of ferrite respectively Divide 25a-25c and pole shoe 28a-28c.
Curvature 20, and the pole shoe 28a-28c of the protuberance 22a-22d, 24a-24c of electromotor movement 18 is by iron content Steel is made, and it is easy in terms of machinability, has sufficiently high pcrmeability simultaneously.
Fig. 3 illustrates in greater detail of the protuberance 24a of movement, and it has a pole shoe 28a and an electromotor Coil 26a.Protuberance 24a has cylindrical main part 25a in the interstitial hole being installed to coil 26d, coil 26a quilt It is wrapped on plastic form 30 or on its axial end and there is plastic spacer.Pole shoe 28a has along with to yoke portion The width that the distance dividing 20 increases and increases, until it reaches the width of magnetic phonic wheel 16, and pole shoe 28a is in the circumference side of phonic wheel 16 The length of end face upwards is less than the length of one of the magnetized spot of magnetic phonic wheel 16 in circumference or pitch direction.Pole shoe 28a Can be formed in the unitary part be made up of iron content steel and cylindrical body portion 25a being connected to protuberance 24a, logical Cross threaded, welding, bonding or additive method.
As an alternative, coil 26a can be by main part 25a being directly wound into protuberance 24a.To curvature 20 Isolation with pole shoe 28a is implemented by pad.
Fig. 4 is a further embodiment of the present invention, and it have shared the many phases with the embodiment in Fig. 2 and Fig. 3 Like property, therefore the description at this same characteristic features is omitted.Primary difference is that two horizontal generator coil 26a, 26c are set It is set to lower than middle generator coil, therefore distance between generator coil and magnetic phonic wheel 16 and thus radially The height of the pole shoe on direction is more or less identical.The curvature of phonic wheel 16 is by the curvature of electromotor movement 18 not Same width compensation.
Fig. 5 shows the sensor housing 32 with the electromotor movement 18 according to the present invention.
Fig. 6 shows the installation process of the electromotor movement 18 according to Fig. 2.The main part of cylindrical projection 24a-24c Divide 25a-25c to be threaded connection or the bonding pole shoe 28a-28c that is provided with, be installed to generator coil 26a-26c's simultaneously In interstitial hole, and this sub-component is subsequently affixed to the fixed salient 22a-22d without additional generator coil, In hole in the inner radial surface of the curvature 20 between 24a-24c.
Fig. 7 shows the assembly in operation, it is, the assembly engaged with magnetic phonic wheel 16 magnetic according to the present invention.
For in the test of train bearing, add up to 11mV/ according to the voltage output of the electromotor movement 18 of the present invention Rpm, its sensor cluster enough driving the present art and wireless transmission interface.According to the present invention in applying for train The measurement of the appropriate electromotor movement 18 assembled show, the power output to the impedance matched will amount to 75mW, with electricity The power holding coupling exports 110mW.This is specifically adapted for the electric voltage frequency of the 660Hz being expected in the application observed. During while in altofrequency, ferrite movement is more excellent in terms of output voltage, but result is unexpectedly that steel core is at frequency model Enclosing aspect is can compare even better.When using the Capacitance Coupled being optimized to 660Hz that capacitor is charged, according to this The output voltage of the electromotor movement 18 of invention is higher than the output voltage of the design according to prior art by 16%.
The mixture of steel and ferrite composition can help the requirement balancing output enough under low-frequency range and avoid The requirement of excessively output under high-frequency range.

Claims (11)

1. a generator assembly, it obtains energy by interacting with rotary magnetic phonic wheel (16) in bearing arrangement, described Generator assembly includes that electromotor movement (18), described electromotor movement (18) have curvature (20) and be set to a row also And from the prominent multiple bar-shaped protuberance (22a-of curvature 20 on the longitudinal direction being basically perpendicular to described curvature 20 22d, 24a-24c), wherein said bar-shaped protuberance (22a-22d, 24a-24c) has end, described end structure be respectively with Magnetic phonic wheel (16) forms gap, and described electromotor movement (18) farther includes at least one generator coil (26a-26c), institute State at least one generator coil (26a-26c) to be wrapped in around at least one in described protuberance (24a-24c), its feature It is that the described protuberance (24a-24c) being provided with described generator coil (26a-26c) has mounted to coordinate at described The main part (25a-25c) of the cylinder form in motor coil (26a-26c).
2. generator assembly as claimed in claim 1, it is characterised in that at least one part of described generator assembly is by ferrum Oxysome is made.
3. generator assembly as claimed in claim 2, it is characterised in that there is the described of described generator coil (26a-26c) The described main part (25a-25c) of protuberance (24a-24c) is made up of ferrite.
4. generator assembly as claimed in claim 3, it is characterised in that include pole shoe (28a-28c), described pole shoe (28a- 28c) it is connected to the described main body with described at least one protuberance (24a-24c) of described generator coil (26a-26c) The partly axial end of (25a-25c), the width of wherein said pole shoe (28a-28c) along with to described curvature (20) away from Increase from increase.
5. generator assembly as claimed in claim 4, it is characterised in that described pole shoe (28a-28c) is formed from steel.
6. the generator assembly as described in one of the claims, it is characterised in that include at least three protuberance (22a- 22d, 24a-24c), it is at least middle that wherein said generator coil is wrapped in described at least three protuberance (24a-24c) One around.
7. the generator assembly as described in one of the claims, it is characterised in that described coil is cylindrical coil.
8. the generator assembly as described in one of the claims, it is characterised in that described coil is wrapped in cylindrical drip molding (30) go up and coordinate the described cylindrical body portion at least one of described bar-shaped protuberance (24a-24c) subsequently (25a-25c) on.
9. the generator assembly as described in one of the claims, it is characterised in that include not there is generator coil at least Two protuberances (22a-22d), each protuberance (24a-24c) being wherein provided with described generator coil (26a-26c) sets Put between two protuberances (22a-22d) without generator coil.
10. generator assembly as claimed in claim 6, it is characterised in that not there is the described protuberance of generator coil (22a-22d) form as one with described curvature (20).
11. 1 kinds of bearings, it has at least two being configured to be rotated relatively to each other and rotates circle, it is characterised in that include according to upper State generator assembly and the magnetic phonic wheel (16) of one of claim.
CN201610474630.1A 2015-05-05 2016-05-05 Generator assembly Active CN106151295B (en)

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CN114761696B (en) * 2019-11-26 2024-01-02 米巴滑动轴承奥地利有限公司 Bearing assembly

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GB201607392D0 (en) 2016-06-15
GB2538624B (en) 2018-02-07

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