DD284730A5 - TURN STARTER CLUTCH FOR TRANSMITTING HIGH SPEEDS AND / OR TORSION FORCE - Google Patents

Abstract

The invention relates to a torsionally rigid coupling for the transmission of high rotational speeds and / or Torsionskraefte, which can be used in the connection of machine elements, in particular shafts, which can be arranged axially aligned or non-aligned. The aim and object of the invention are to propose a solution which requires both a low production cost compared to known devices and has a long service life as well as great robustness and short installation length a backlash-free and largely vibration-free transmission of Torsionskraefte on the aligned or relative great angle non-aligned to each other arranged machine elements gewaehrleistet. This is achieved by arranging bearing elements between two essentially planar surfaces, which are fastened to the machine elements in torsion-proof manner, bearing elements which are connected to one another via connecting elements and which themselves are not subjected to torsion, but only to compensate the angle between them serve the machine elements. Fig. 1 {coupling; Speed of rotation; torsion; Machine element; Production expense; Life; Robustness; Einbaulaenge; Rotating elements; Bearing elements; Fasteners; Compensation; Corner}

Description

A 28473 С

Title of the invention

Torsionally rigid coupling for transmitting high rotational speeds and / or torsional forces

Field of application of the invention

The torsionally rigid coupling is used to transmit high rotational speeds and / or Torsionskraefte in the connection of machine elements, in particular shafts, which may be arranged axially aligned or non-aligned.

Characteristic of the known state of the art

Couplings for transmitting high rotational speeds and / or Torsionskraefte are known. In the article "Transversely moving couplings - structural and kinematic systematization" - (Antriebstechnik 10 (1971) Nr.Ii, p.409-419) a variety of different couplings are described. The Alsthom coupling is capable of transferring high speeds and high torsional forces when the machine elements to be connected are aligned. However, if this is not the case, angular fluctuations and vibrations occur in the system. Although the Kaerger clutch and the Kravchenko clutch avoid some disadvantages of the A1 s t. η о m - K ρ ρ 1 u η g, show η each о ha ha ere ere ere ere 1 1 1 1 ae η g 1 i. η h ete η. Thus, for example, the relative lateral movement between adjacent elements in non-operational modes is limited to translational motion by the arrangement of the coupling links between the rotary elements parallel to each other, thereby also changing the symmetry due to the change in the links, so that such clutches are included aligned operation are not symmetrical with respect to the axis of rotation, which leads under certain circumstances to a vibration imbalance or »unbalance, which becomes larger with increasing deviation from the aligned position. The Oldham couplings have the disadvantage that, in the case of large axle deflections,

28 4 73 О

The high speed and the frictional losses are high. At high angular velocities, the effective traction force must be balanced. However, this is not easy with the help of counterweights possible, which is why these bupplungen are not used at the same time at high speed and large axis deviations. In addition, the service life of such couplings is relatively low due to high wear. In addition, due to the precision work required in the manufacture of the couplings, high production costs arise.

In DE-OS 23 55 108 a coupling is described, which works both at aligned as well as in non-aligned arrangement of the waves to be coupled at high speed and large Torsionsl 'raef te transferred. However, by the occurrence of vertical Hraefte the waves are heavily loaded on bending and the bearings in the vertical direction.

Object of the invention

It is the object of the invention to provide a torsionally rigid coupling, which in comparison to known devices both a low production cost for their production requires and has a higher life, without having to accept embuses especially in terms of performance parameters working speed and height of Torsionskraftuebertragung

Darlag County ung of the We sens of Erf indung

The object of the invention is to develop a coupling with great robustness which, in the case of a short installation, provides a backlash-free and largely vibration-transmitting transmission of the friction to the machine elements arranged in alignment or with a relatively large amount of light stet.

28473

According to the invention, this object is achieved in that on the end face of a driven machine element, a substantially flat surface exhibiting rotating element and on the front side of an aborted Maschxnenelements also a substantially planar surfaces exhibiting rotating element are torsionally secured. The rotating elements occupy a parallel position to each other in the machine elements located in alignment with each other. On both substantially flat surfaces having rotating elements holding elements are fastened in the a: ialer direction on the driven or aborted machine element side facing away. On each of these holding elements sits a bearing element firmly. Depending on a bearing element on the shark teelernenten of the substantially planar surface having rotary member of the driven machine element is fixedly connected by means of a connecting element, each with a bearing element on the HaI teolementen of substantially flat surfaces having rotary member of the aborted machine element. The number of necessary connections between the two substantially planar surfaces having rotary elements depends on the diaper to be compensated alpha between the non-aligned position to each other located machine elements. This Diaper Alpha will Heiner, the greater the number of fasteners. The number of connecting elements is limited only by the size of the turning surface in the wispy plane surface.

The closer the shark teelernente are attached to the edge of the substantially planar surfaces having rotary elements, the larger the transferable from the Hupplung Hraefte, but so Heiner is the compensatory Wirtel Alpha.

The distance of the rotating elements from each other is so festgeleqt that d.ie the bearing elements Verti-al in the middle of the cross-over center and the height of the HsIteelernente so dimensioned tct _H that the bearing element? bc? i beastly I am able to learn from the machines in non-aligned Laqe the turns do not touch te = ¹ »

The driven or aborted machine elements are formed by waves in most cases. However, the use of, for example, axes and the like is also possible.

As substantially flat surfaces having rotating elements wef- used the discs usually, but also the use of cogs and the like is possible.

By shark teelernenten, for example, bolts, pins, fitting screws, Kolbenstangenkoepfe (joint heads) and the like to be understood.

As connecting elements, for example special clamping elements, fixed connecting elements and the like are used.

In particular, self-aligning ball bearings, spherical roller bearings or piston rod heads (joint heads) are used as bearing elements.

The advantages of the coupling according to the invention over conventional solutions come into play especially when the driven and aborted machine elements operate in a non-aligned position relative to one another. In this case, one of the two substantially planar surfaces having rotary elements, for example, at the lower vertex about the vertical to the left and inclined by the same amount at the upper vertex to the right. As a result, an equal distance of the bearing elements of one of the other rotary element is always guaranteed. The bearing elements are not subjected to torsion, but serve only to balance the angle of the driven to the aborted machine element, i. The bearings only oscillate according to the angle. This increases the service life of the bearings + · lent.

Although the torsionally rigid yoke is particularly suitable for high rotational speed and / or torsion speeds, it can of course also be used for low torsional vibration resistances and / or torsional forces.

Working Example

The construction and the mode of operation of the torsionally rigid coupling will be explained below on the basis of exemplary embodiments. In the accompanying drawing show

1 shows a partial section along the line B-B of FIGS. 2, 3 and 4 through the coupling with a bolt as a retaining element and a spherical bearing as a bearing element

Fig. 2 is a partial section along the line A-A of Fig. 1 by the coupling with three Verbmdungselementen

Fig. 3 is a partial section along the line A-A of Fig. 1 by the coupling with two connecting elements

Fig. 4 is a partial section along the line A-A of Fig. 1 th by the coupling with 12 Verbmdungselemen th

Fig. 5 is a partial section along the line B-B of Fiq. 2, 3 and 4 by the coupling with a HolbenstangenlÖpf (Sei en Hopf) as a holding and bearing element

On the front side of a driven machine element 1 is ьлі .With substantially flat surfaces exhibiting rotary member 3 and on the front side of an aborted machine elements 2 also has a substantially flat surfaces having Drehelpment 4 torsionssicher. The machine elements 1 and 2 will be described in the exemplary embodiments. 1 and Ь formed in the form of a wave, while the rotary member 3 and 4 beispK'lhdf L cil => disc is shown. The turns learn 3 and 4 in which they are in an aligned position relative to each other.

Chen machine elements 1 and 2 a parallel position to each other. On the substantially flat surfaces having rotating elements 3 and 4 are on the driven side 1 or aborted machine element 2 side facing away from holding elements 5 and h fixed in the axial direction. As holding elements 5 and 6 are in the examples according to FIGS. 1 to 4 bolts or pins and in the example according to FIG. 5 piston rod heads (joint heads) shown. In the exemplary embodiment according to FIG. 2, three holding elements 5 and 6 are respectively mounted on the rotary elements 3 and 4 at an angle of 120 ° to each other, whereby an angle alpha of 5 = · can be compensated. The Ausfuehrungsform with two holding elements 5 and 6 as shown in FIG.

3 is able to compensate for an angle alpha of 6 °, while with the embodiment according to FIG. 4, although higher torsional forces but only an angle of 0.5 ^{β can be} compensated. On each of the holding elements 5 and 6 sits a bearing element 8 and 9 firmly on. In Fig. Dieses, this bearing element 8 and 9, a self-aligning ball bearings, while it is in the embodiment of FIG. 5 is a piston rod head (condyle). Depending on a bearing element 8 on the shark teelernen th 5 of the substantially flat surface having rotary member 3 of the driven machine element

1 is by means of a connecting element 7 with a respective bearing element 9 on the shark tea learn th 6 of the substantially flat surface having rotary member 4 of the aborted machine element 2 firmly connected. As a connecting element 7 was in Ausfuehrungsbeispiel according to FIG. 2, a special clamping element is used, in the Ausfuehrungsbeispielen according to FIGS. 3 and

4 solid fasteners were used. The distance of the rotary elements 3 and 4 from each other is set so that the bearing elements 8 and 9 are aligned vertically above one another in the centered position and the height of shark tea is to be 5 or 6, so that the bearing elements 8 and 9, respectively groesstmoeg1 i adjustable angle alpha between the machines i am learning and i

2 in non-aligned position, the rotary elements 3 and 4 do not touch.

Claims (5)

cLAIMS (1) by means of a connecting element (7), each with a bearing element (9) on the H ^ l teelernenten (6) of the driven Haschinenelefflpnts (2) are firmly connected and that the distance of the rotary elements (3 b ^ w It is established that the bearing elements (8 and 9) are in alignment with one another centrally in the center position and the height of the retaining elements ¹ (5 or 6) is dimensioned so that the bearing elements (S and 9) can be compensated as far as possible between the machine elements :! (1 and 2) in a non-aligned position, the rotary elements (3 or 4) do not touch. 1. A torsionally rigid coupling for transmitting high rotational speed and / or torsional forces, characterized in that on the end face of a driven machine element (І) there is a substantially planar surface having a rotating element (3) and on the front side of a aborted machine element (2) also a substantially planar surfaces exhibiting rotary member (4) are fixed, the rotary elements (3 or 4) in the mutually aligned position machine elements (1 or 2) with their flat surfaces a parallel position to each other assume holding elements (5, 6) in a, ialer direction on the driven (1) b ^ w on both substantially flat surfaces having rotary elements (3 and 4). are fixed away from abutted machine element (2), on each of which a bearing element (S or 9) is firmly seated, that a respective bearing element (S) on the holding elements (5) of the driven Maschmenelements (2) For example, waves, axes, etc. are used. 2. Torsionally rigid coupling according to claim 1, characterized in that as driven (i) or aborted machine elements 3. A torsionally rigid hitch according to claim 1, characterized in that substantially flat surfaces having rotary elements (3 or 4) represent, for example, discs, gears and the like. 4. Torsionally rigid coupling according to claim 1, characterized in that the holding elements (5 or 6) are, for example, bolts, pins, fitting screws, piston rod heads (articulated heads) and the like. 5. A torsionally rigid coupling according to claim 1, characterized in that connecting elements (7) represent, for example, special clamping elements, fixed connecting elements and the like. Ѣ. Torsionally rigid coupling according to claim 1, characterized in that as bearing elements (8 or 9) in particular self-aligning ball bearings, self-aligning roller bearings or piston rod heads (ball bearings) are used. 4 sheets of drawings