DE1911515C3 - Voltage generator for generating an output voltage that is dependent on the angular velocity between two mutually rotatable parts - Google Patents

Description

1 911 5i5

It is known from T-PS 889232, US-PS 3 245 213, and DT-PS J 66 012); the ais iri stand ¹ closed structural units iüsgebiläet ütiä front side with the opposite to another component rotating Component connected -fei} With the 'speed sensors according to Dt-PS 889232 urld DT-PS 1166012 the stator

Setting one from the minimum size up different working air gap between stator and rotor leads,

While with the voltage generator mentioned above due to the rolling bearings, there is always a two-way flow Support of the stator on your rotor is, the object of the invention is a floating

(iififl for that the speed measuring transducer itself) via mende bearing of the, stator on which not dre-Walzlaaer The first component is provided on the rotor in every operating state. With smaller Re

roller bearing

supported so that the transducer of the io relative movements get between the stator and rotor äreheddeü component is carried. A relative movement does not result in wear and tear Correct engagement is thus possible between stator and rotor, and the stator is held in place by the spring mechanism. . maintenance on your first component. With a star

Weiierhifi is a tone generator known (US-PS ken Radialverbiegupg, however, the Einüffs- ί 824 245), in which the rotor of the tone generator on 15 surface of the rotor is in engagement with the associated dbr W <Ue of the drive motor Uiestigt. The star engaging surface, so that the stator is moved relative to the winding and the stator component, which carries permanent magnets. In toothed stator minels more support angle vu ^ is erschiebbar gate and rotor has the engagement between the two to the housing of Antriebsm <- -gefestigt ⁴ 3i \. A surface of engagement, of course, before the load on the shaft of the output drive intervenes ... from the outside _ao teeth into one another. Follows which the stator is not given. shifting strong radial movement of the axle shaft

In the case of a different v-fikuiinten speed measured value - a correspondingly opposite return movement- The stator is also fed back via the iDT-AS 1201 G ^ '· stator rotor by means of rolling. Follow stored in a housing & ft, during which, however, movements of a smaller range of motion become A winding made of an inelastic material, the stator in the new position «, by the spring devices and permanent magnets-bearing stator held by the device, so that ic de / new location too Spring steel clamps in the axial direction in the area between contact leading to increased wear is pushed down. The housing and the sta- see bearing body and rotor cannot occur tor are to be provided with shoulders in such a way that a connection between the rotor and the stator is possible.

schiebmig the stator in the radial direction relatively 30 borrowed small relative movements between de beiuin The rotor is not able to lead to small changes in the air gap, which are below

Electric speed measuring transducers with stator. The rotor and the rotor will influence the residual thermal voltage when measuring, but not the output voltage Schwirtdigksk the rear wheels of the vehicle in front and the speed proportional frequency. That I preferably between the Ächsweüenflansch and the 35 in such a relative movement of the air gap / chskasten of the rear wheel arranged. Reduced at one point and diametrically thicker at this point Load, but if the point on the opposite side bends, remains the Rear axle rotating in relation to the axle box in total resistance of the magnetic path via Ro-Radialrifchtung considerably compared to the axle caterpillar and stator at these two points. D- ~ through can "such high radial and / or 4 ° surfaces the same ^ so that also the amplitude is not we-Axialverbiegurig ^ n occur on the axle shaft that is significantly affected. Even with a small relative movement between stator and liotor in the circumferential direction occur in the frequency of the sinusoidal Output voltage only show such errors that the

will. Display errors could therefore occur or further processing of the measurement signal to one of the kaöR the transducer damaged. Speed corresponding analog signal not negative

The invention has therefore been able to influence the task. At one to one displaced, starting from a voltage generator leading to the exercise of the stator relative to the first component initially described type, an electrical rotary intervention does not change the air gap side to create number transducers in which .also at 5 ° more, but the minimum size is adhered to, strong radial deflections of the axial shaft of a stator relative to the first

Vehicle a sufficiently small air gap between component is possible, the working air gap can be kept very small, see the mutually facing sections, so that the transducer on the rotor and stator is maintained without working extremely satisfactorily. In order to maintain the minimum size of the working air gap between the stator and rotor, it is necessary to maintain the minimum size of the working air gap. no expensive rolling bearings require me, and the

Erfmdühgsgemäß it is provided that for the Kinsar of the generator as a speed transducer, the means for achieving the resilient engagement vain which is supported on the first component and ^6o the opposite to the first member radially verschiebbä ^r sn bearing body resiliently in the axial direction in Reiblingselhgriif with the first component oppressive

Spring means is such; that in the absence of ReIa-, .- .. ".

üvbewegung between the two components, an air 65 Permitted transmitter in conjunction with the rear gap between the axis of rotation of fine koaxia ^ n inputs radanordur% of a vehicle usable · gripping surface. of the position body and a corresponding- The invention is based on a

the engagement surface of the rotor is determined, which is described for example.

Luitspalt - /. Wipe ad rotor and stator arranged £ ri Sections Changed or even a reciprocal running yori rotor and stator possible

Schleus zwncneii Κυίυί ühg ^ iaisr -.si L-uCerst low, because only now and then there is a meeting between the two.

The transducer according to the invention can be Use wherever the angular velocity of two components that can be rotated relative to one another, the bending against each other under load, is to be determined; voizugswei & e is the invented

1911 5

Winding 56 wound up. The winding 56 and the winding carrier 58 are annular. A cable 60,

₂ Ιμ3-ι "· -ÄSSBÄssv

2-2 of Fig. Vwob "the Hmterradanordnjng g ^. ^ _Running ^^ ₆₂ upper part

stinkled lines ^ ge ^ Ui ^ of _{the housing} ^ _fixed , _{the m of} the wick-

Fig. 3 is a view along the urn * a 56 l _ung electrical signal generated is therefore in the Ka

^Flg '- ^lf > · ■ c »,« iff I3 ^ oc f * er Mnie 4-4 of the at 60 forwardedL An essentially flat,

_Fl g, 4 a section along the line 4- * disk-shaped bearing body 66 is at the rear

Fig. Lund _def , c attached to the end of the housing 30.

Fig.5 e.nen section long «the line α knife 68 of the bearing body 66 is slightly less than

F ig · 2.. M ^ Rwe-i-eber 10 in the Dur'-messer c3 «-s tooth tip circle. At an im

According to the rules, the measurement is over 1. m circular section 72 of the axis

_Connected to one in gef ¹ ^ ¹ ^ " ¹ ^^ £ cIIe, 4 an annular rotor 70 is attached. The

put "T ^ tT ^ h ™ JS end a 15 rotor 70, st on its outer circumference with a lot ·

Axle shaft U f »* ^old - * ^β1 ™ Γ ^» Jf ^ L ™ J ρ ^ _Γ . ^ ι provided by axially extending teeth 74, the

Flange 16 carries on which a ^ (not shown) driving stator section 52 from

zeogad befallgt ™ ^ "" * Ξϊ £? ^ üW which are directed. The rotor 70 goes on its axially rotatable in axle box 18, dei , an ^ β ^ ^ ^ ^ _essential ^ _n ^ ₅ .

Can design and schn.tt to se »™ ™« ™ ^f ™ "^ _{M nngiörm] gen From} 76 through which the radially inne-

a bell-shaped ^^ ⁿ '«^ ⁸ ^ J; ⁱⁿ _A ° _hs . , Jm ₀ Jc 68 of the bearing body 66 is facing. the

^M il ^ äSf ^ aS ^^^^ tt 20 air gap between these bc: the facing

hold wave 14. The radial surfaces running gl ^ ^to * Jg (see F i <i. 5) is smaller than the gap between

ÄVÄ ^ ÄiS at the £ teeth 74 of the rotor and teeth 54

Am g £

is partially attached _we sentf- "'' between the bearing body 66 and a Schen-

^DerM irfSL ί ? Ά T kl S 50 i Ghä 30 i ring-shaped

_e sentf- zwTsdlen the bearing body 66 and an S

The stator 50 in the housing 30 is an annular one

Ä ^ n ^ TuSi ^ T ^ hla the holding permanent magnet 80 is arranged, its polarization

Sn STnveSiebbtr mounted on the axle box 18 in FIG. 2 is shown D ^ Housing 30 consists of

Im ₅ 20 unverscriieoD ^ ^. non-magnetic material in order to

is, is a housing 30 for ° ^en ^ ™ ^ slidable. Magnet 80 magnetic flux to ensure

below ^^^^^ S ^ QaoS ^ i The air gap between the facing teeth

bar at the ^H f ^ ⁿⁿ \ ^M - ^ fSS Formed and at 54 and 74 is chosen as small as possible to one

in essence, circles, «g ™ 8 '^ J ™ ^ J Z to create powerful transducers. At star-

SS SSÄ S? S " ^e na _C rin ^e n" 35 * he bedding of the at the outer end of the axle shaft

Avoid v-cracking flange 32. The housing 30 14 attached bicycle bends

fet SSSe'er F "derbügel 34 (see Fig.! and 3), the axle shaft around the radial direction opposite the

is in the middle of two r .uliuu c ν ₆ axle box 18, and as a result the

Sc2b £ « ^e " ihering26 ^J 1e:; S: rotor 70 arranged on the axle shaft 14 in radial

this spring clip 34 contains two 4 ° dial directions with respect to the stator 50.

This "aeroug bending" covers the surface 76 of the rotor 70

^ IL ^ St ^^^ Slto ^ Sdea the storage area '68 of the UgeAfiipe »66. To this

Si The skin strip 40 essentially covers the point of intersection between the teeth 54 and 74

the flange 32 of the housing 30 and is at 42 after still at L ^ pait and as a result the

S'ebogen inside, so that it does not damage the flange 32 of the teeth. With further bending ver

uuicu au o <- f '^ l,.; _ _Th VorsoannunE ER, the housing slides 30 about the through the nose

ärsÄ £ ^r S2nrSs? rS * s ^ ₄₆ ^ d _{i Ρ} ^ ₀ ι ₃₄ ^ d

rim; Mfesigekleinint is The retaining strip 40 is bo- connection. As a result of this non-rigid attachment, it is bulky and essentially adapts to that of the housing 30 and its associated components RmHe? Outer surface of the housing 30 adapted; The legs 38 move along the height of the stator 50, however, with play so that the housing, including the stator 50, can be moved unhindered in the event of strong compression. bends of the axle shaft 14 with respect to the axle shaft. The housing 30 is provided with an inwardly tapered 18 so that at least a predetermined nose 44 is provided, which can sit in an upright slot 46 in the retaining ring 26 in an enlarged male gap between the teeth 74 and 54 . As a result, 55 remains, whereby damage to the teeth of this connection is prevented, the housing 30 against one and the entire transducer. Relative rotation with respect to the retaining ring 26 Although it allows a limited pivoting movement of the housing 30 relative to the retaining ring 26, it will burden the mechanical rotation 50 the bearing body 66 transmits a torque which is tightened at the front end on the flange 32. If the strong bending ceases to be applied, and at its radially inner end in a housing 30 and its associated components ernaxiaf extending portion 52 passes over the with eventually the stator 50 in its initial position to-_5 _ΠΕΓ plurality of circumferentially distributed, jerk provided 65 . Although slight changes in the teeth 54 (see Fig. 5), which run axially in the air, occur with a gap, when the size is reduced, the minimum distance between the bearing body 66 and the stcns is partially borne by the stator 50, is a rotor 70 in the one direction the distance m the

opposite direction increased accordingly, so that the overall effect of the air gap is substantially remains unchanged. Since the teeth 54 and 76 run in the axial direction, there is an axial relative movement between the axle shaft 14 and the axle box 18 to no change in the gap width, but wind automatically balanced.

In the case of the measuring transducer according to the invention So an extremely small air gap can be provided between the stator and the rotor without the There is a risk that these components will be damaged if they are severely bent. As a result of this little one A powerful transducer is created through the air gap.

For this purpose 2 sheets of drawings

Claims (4)

The invention relates to CnIeIi1 voltage generator claims: for generating a from the angular speed between two mutually rotatable parts 1. Voltage generator for generating a pending output voltage, with an output voltage that is dependent on one of the angular velocity between two structural components by means of a bearing body and mutually rotatable parts, which is firmly connected to the bearing body, output voltage, with one on a first Build a joint with the second component with a stator mounted by means of a bearing body, forming a ring-like working air gap with which the stator is firmly connected to the bearing body. A rotor connected to the stator and with a device that is non-rotatably connected to the second component in order to achieve a radially flexible formation of an annular working gap engagement z & iscfien one of the inductively connected rotor with the stator and M eider fiüsle'näeii eleven in series (stator and rotor) and the to-aligning ring to achieve a radially ordered component, whereby with ainer relative movement resilient engagement between fine area between the first and second component in radial inductively influencing electrical devices (stator t ₅ direction of the stator after reaching a vdfgegebe-Tind rotor) and the associated component, with the minimum size of the working air gap between the rotor and the second component in the radial direction of the rods being pushed through the one during a relative movement between the first stator and rotor Component in gate after reaching a specified minimum rich The relative movement compared to the other size of the working air gap between the stator and ao ren component is possible in order to at least keep the pre-rotor acting on the rotor and thus maintain a minimum size of the working air gap both through the one component in the direction. direction of the relative movement with respect to the other such a voltage generator is known ren component is possible by at least the superiors (Ub-PS 2 658 157), which is used as a dynamo, passed Mmimalgröße the working air gap switch a ₅ wherein the variable at a relatively low speed zuhalteD, characterized in that between the two mutually rotatable parts that for the use of the generator as rotary the output frequency is comparatively high in order to achieve zanl-measuring value transmitter the device -ram over the speed range a ίίη essentially condensate, resilient engagement to achieve a constant output power. The most toothed component (18) supporting the _{stator with 3O} and windings is firmly connected to a stationary body (66) resiliently in the axial direction along the axis of travel by means of a bearing body (66) that can be moved radially in the first component. The stator encompassing and bungseingnff with the en en component * pressing a polarized permanent magnet rotor carrying l-edeiemnchiung (34) such that is case of a missing to form the axis in substantial for Drehder relative movement between the two construction ₃₅ coaxial air gap with the stator in a split (18, 14) em air gap between a rotating axis of the coaxial input surface (68) of the input surface (68) of the coaxial with the externally loadable housing, which is rotatable on the axis via two roller bearings • f- ^e *? 7 ^e ^ 2r ^ ^{and emer} corresponding storage is. To achieve a grass surface (76) of the rotor (70) in the radial direction, the resilient engagement is inserted between the outer surface for converting a minimum _{size to 40 of} the rotor and the inner surface of the housing with a working air gap between rubber rings. To keep the stator (50) and rotor (70) leading. specified minimum size of the working air gap 2 voltage generator according to claim 1, therewith a constant amplitude of the characterized in that the stator (50). and windings of the tapped output current, the bearing body (66) supports itself in a housing (30) U the rotor is placed on two in the axial direction, the roller bearing arranged by the spring device (34) is acted upon accordingly and the bearing body (66 ) against the circumferential surfaces of the stator. In pulsatile Belaid ^ T - T ^{TSN ei1 (18) Fixed To} ° ^{ie Hal} teplatte stung the housing, the resulting (Zo) are printed. Deformations absorbed by the rubber ring, 3. Voltage generator according to claim 1 50 and a change in the width of the working air gap or 2, characterized in that the Ge is avoided by the roller bearings. However, the joint parts (44, 4S) make it possible for the house (30) to be displaced to a limited extent on the axis from the retaining plate (25) and to pivot on the sleeve-shaped bearing. body transferred. 4. Voltage generator according to one of the 55 A speed measuring transducer is known Proverbs 1 to 3, characterized in that the (DT-PS 945 297), in which a rotor at the front LägcrKorper ^ ooj ring-like with a cylindrical end of a rotatable relative to a housing see inner bore ^ 68) is attached for engagement with shaft. In the case is a with the The rotor (70) is formed and a Ln we- rotor cooperating and carrying the windings flat radial surface provided for engagement 60 of the stator. The through the rotor in the with the first component (18). Windings induced voltages are used to ·· ' ₁ ^ Pf ⁿ ° ^un ' g ^s 8 ^{enerator according to} one of the instructions for a signal corresponding to the speed, sprucnel up to 4, characterized in that the is used. To loading even at displacements of the shaft in Federeinnchtung (34) on the holding plate (26), its bearings mutual tarnishing of rotor ifflwi I ^st '. . In turn, to avoid the first component 65 and stator, the air gap between (IH) is attached. _{Set the rotor and stator} sufficiently large. Due to the relatively large air gap, however, the sensitivity is relatively low.