DE1963755C3 - Torsionally rigid double tooth coupling - Google Patents

Description

The invention relates to a torsionally rigid double tooth coupling with two toothed coupling hubs. a coupling sleeve connecting these uiHl evenly distributed over the l'miang, Pre-tensioned engagement elements centering the coupling sleeve with respect to the coupling hubs.

A known torsionally rigid double tooth coupling (German Auslegeschrift I 064 766) is designed in such a way that that bolts are provided as engagement elements, each of which is supported on springs. This Bolts have a flat inclined to their longitudinal axis. The disadvantage here is once the relatively large effort, which results from the assignment of bolts and spring element. Furthermore, the flattening must be measured aelian.

an undesired jamming of the bolts and this prevents the entire clutch from functioning properly.

Furthermore, a torsionally flexible coupling is known (French patent specification I 38 (15119), he which the torque is based on curved steel segments. Such couplings are however, for a given torque, it is so large that it can hardly be used for high-speed drives

ίο are. The elastic elements can only have one Transfer a fraction of the circumferential force that is possible with a tooth coupling. As a result of The large diameter is due to the imbalance forces Coupling unusable at high speeds. the

Production of this known coupling is also very expensive if it is a precisely manufactured one Coupling should act as the slots for the elastic pieces with a special form cutter must be produced in the Hinzelteilverfahren.

The state of the art also includes a so-called stepping motor, which has a rigid internally toothed ring, a flexible externally toothed ring, and a wave generator. The externally toothed flexible ring is smaller than the internally toothed ring and has fewer teeth. The wave generator causes a radial deformation of the externally toothed flexible ring. Again, there is no torsionally rigid double tooth coupling. as input was named ^one, but it is a stepping motor with completely different mode of action and other structures.

The object of the present invention is to create a torsionally rigid double tooth coupling of the type mentioned at the beginning, which is perfectly centered in every operating state, i.e. from standstill to nominal torque. without constraining forces opposing the toothing due to the centering effect that occurs in the operating state.
This object is achieved according to the invention in that the engagement elements are designed to be elastic in the radial direction in a manner known per se and in that they are arranged between the coupling hub and the coupling sleeve instead of individual teeth. This results in the advantage of an elastic centering in the radial direction by the engagement elements. by means of which undesired jamming due to constraining forces during operation from standstill to nominal torque is perfectly avoided. This advantageously results in a simple but functionally reliable design of the engagement elements.

According to another feature of the invention is a torsionally rigid double tooth coupling with two toothed Coupling hubs. a coupling sleeve connecting these and evenly over the circumference distributed, the coupling sleeve opposite the coupling hubs centering, pretensioned engagement elements such that constructive the engagement elements are inelastic in the radial direction and the coupling sleeve is elastic are.

In a further embodiment of the invention, a torsionally rigid double tooth coupling with two toothed Coupling hubs. a coupling sleeve connecting these and equilibrium over the circumference

borrow the coupling sleeve opposite the coupling nears centering, biased engagement elements be designed so that the Engagement elements are integrally formed with the coupling near teeth, which opposite the Coupling sleeve teeth have oversize, the coupling sleeve being elastically expandable. This also advantageously always results in a reliable dynamic balancing of the torsionally rigid ones Double tooth clutch.

^ n further embodiment of the invention can The tooth pitch of the coupling hub and coupling sleeve do not lie on any circle, although after completion the toothing springs back the corresponding part, causing it to move to the intended Make the desired engagement with the other part after assembly.

The invention is described below with reference to the exemplary embodiments shown in the drawing described in more detail. In the drawing shows

F i g. 1 is a sectional side view of the centered tooth coupling according to the invention,

Fig. 2 is a section along the line H-II in

Fig. 1.

F i g. 3 different embodiments of the

Intermediate elements.

F i g. 4 shows a side view of the centered tooth coupling according to the invention according to a further exemplary embodiment on average.

Fig. 5 is a section along the line V-V in

F ic. 4th

ie in the LIm the spacers 6 against axial displacement to secure, spring, steel wire rings 7, H. 9 and 10 inserted into corresponding recesses in the coupling sleeve 4.

Due to the resilient intermediate pieces 6, the coupling sleeve 4 is always free of play on the coupling areas 1 centered, even if the coupling sleeve 4 is upgraded due to high centrifugal forces. Should the Coupling sleeve 4 when transmitting the torque

■ ~ ■ ■ - -1: - -7 .. · "

^. ^^ L ^ accept. Sun occurs only certain flanks ^ since the Zv.ischer-

cn ge ⁿⁿ e ^er . ^m " ^e _v ^r " _f ^ _ ¹ ' _n ^b _Be i _er esser Achsversetstucke elastic "™ ^rn V \ _VcIle - _n result from zungcn -J; ™ ^ J ¹ ^ ™ _r ^ _nune even those in the ^ ^u PP | " ⁿ ^ _ _kraf {c intermediate pieces cum. ί ■ _hjs ,

Be, the execution be sp c "^ _{1 Hii | c of} the tooth coupling it is _" ^eUc tooth coupling

the ^^^^ X ^^ b ^ ü without dal ', in centre ^Za h " ^k " PP ^lu ^ - _{dcn must} . large crc parts new 1 urgLsu t * ,; _{Nführuni! shcispiL} . |

In Fig. 4 b.sjS. t un wc ■ ^ _K ^

^ ^ _about dim f

^^ ί ^ β ^ ΓK ^ un ^ not at first

, κ ü Hiem> I all tooth heads are the is mountable. Afterwards * «a bcispicls-

Coupling control Z a ^ g ^ ^^ ^ _cjp

Γ ¹ ^ ^d ? ^b 'Ln ^ n is Die'verberberenden Zäh.w KopfspielvorhancJen ^^ st ^ J ^ y «^^ _{ang (} . _sch räut

35 ^

now _ß 2. in which the internal toothing 3 of a coupling 4 engages with little backlash. Here, the coupling sleeve 4 can be divided and screwed to a screw 5. Another Mog-Ä is also the Ku _PP , ungsnabe and the
Another

the ^Za . ^hnk ^
the same

₄ o to F * «

TcSb? If "the external teeth, for example, three teeth evenly distributed around the circumference are shortened by a certain amount so that a gap is created between the external toothing and the tooth base of the internal toothing 3 1 centered with bias, st. The intermediate ^{pieces can have the shapes shown here, e.g. U-shape (Fi S} _e .3aCV shape (Fig.3b) or triangular shape Fi E. 3c) the tooth pieces according to F i £ 3 a and 3 b can be made of steel while the "intermediate piece according to F i g. 3 c of elastic that _uni 2 while comprising all _C sser _icdoch and _the vcr / AH $ £ $ J $ i ^ recycle, is ^, ^ ß -zahjum.keinen the TcilkÄscr ^ UEN

^krt · ^ ⁿⁱ ^ ^{hr da sl} f'J ™ * Ouaclrat approximates. this

gen ^D ™ ^c \ ⁰ ^ -J ^ ZrOc _n that the coupling can thereby bc ^ .rU ^ n _ _{n ejncm}

sleeve 4 heim ^{fabric endcr} ; ^c ^^ _{cn mm} cn becomes and ^Β ^^ ί _{becomes around} a certain m. _After finished

^ | 3 _{jn K f ic1 to} go back unu, »

see agendas d ^r - J ¹² ^ ^v ^ ^r _da " _{ci2cn through} sealing socket 4 ^ be. de Mon ag d - _{itct wcr} .

₅ 5 teeth k V ¹ L ^ Sf di ncwünschtc preload

here η drc ^
Dimension radially to
₅ o ^ llung the
these places

see deformation of the coupling sleeve 4 the ^ν Α! 52 £ der

6o new

to center your egg.

«0« direction.

1 sheet of drawings

Claims (5)

J '; i I c η l ii η s j ■> r ü c ti υ: 1. DrchstuirL · Double tooth clutch .nit two toothed coupling hubs, a coupling mulTe connecting these and evenly across distributed around the circumference, centering the coupling sleeve in relation to the coupling areas, lined pre-tensioned engagement elements. characterized in that the Engaging elements (6, 11) are designed to be elastic in the radial direction in a manner known per se and that they are arranged in place of individual teeth between Kaipplungsnahe (1) and coupling mulTe (4) are. 2. clip ring according to claim 1, characterized in that because the ringtones (6) are stored twice on their outside hearth Bending bars are formed. 3. Torsionally rigid double tooth coupling with two toothed coupling hubs. one that connects them Coupling mulTe and evenly distributed over the circumference, the coupling mulTe opposite Pre-tensioned grip elements centering the coupling hubs. through this characterized that constructively · the engagement elements inelastic in the radial direction and the coupling socket is elastic are. 4. Torsionally rigid double tooth coupling with two toothed coupling hubs. a coupling mulie connecting these un ^: evenly distributed over the l'miang, the coupling sleeve centering with respect to the coupling hubs, pre-tensioned engagement elements. characterized in that the engagement elements are teeth (11) which are formed in one piece with the coupling hub (1) and which are oversized in relation to the coupling groove teeth, the coupling groove being elastically expandable. 5. Coupling according to claim 4, characterized in that that the tooth pitch of the coupling hub and coupling mulTe on none Circle liesit.