Wittenstein Se

Wittenstein Ag

Michael Schmidt

Thomas Bayer

Heiko Schreiber

Martin Kimmelmann

Thomas Wilhelm

Andreas Kümmeth

Frank Michel

Thomas Rossmeißl

Lars Estermann

Johannes Rôder

Andreas Kuemmeth

Gearbox () having a tooth carrier () for receiving teeth () of a gear ring that are disposed about a rotation axis () of the gearbox, wherein the teeth () are disposed in the tooth carrier () so as to be displaceable and guided in the radial direction, a cam disk () which is rotatable about the rotation axis () and for driving the teeth () in the radial direction has a cam curvature that is variable over the circumference, wherein bearing segments () which are mounted so as to slide on the cam disk () are disposed between the teeth () and the cam disk (), and wherein the bearing segments () have a contact region which has a concave curvature and is disposed so as to be centric on a running surface that faces the cam disk (), wherein the concave curvature is larger than the smallest cam curvature of the cam disk, and smaller than the largest cam curvature of the cam disk.

Coaxial transmission with plain bearing

A coaxial gear mechanism () includes a toothing () which is oriented axially with respect to an axis of rotation () of the coaxial gear mechanism (), a tooth carrier () which in each case has axially oriented guides (), and tooth pins () which each comprise a body (), which is mounted so as to be axially displaceable in a guide () of the tooth carrier (), and a head region (), wherein the head region () includes at least one tooth () for engagement with the toothing (), and wherein the tooth carrier () wherein the tooth carrier has an irregular angular pitch.

Coaxial gear mechanism

Coaxial gear mechanism (), having a toothing () oriented axially with respect to an axis of rotation () of the coaxial gear mechanism (), a tooth carrier () with axially oriented guides (), tooth pins () which each have a body (), which is mounted in an axially displaceable manner in a guide () of the tooth carrier (), and a head region (), wherein the head region () has at least one tooth () for engagement with the toothing (), and wherein the head region () is configured to be wider than the body ().

A coaxial gear (), includes an axially oriented tooth system () with respect to a rotational axis () of the coaxial gear (), a tooth carrier () having axially oriented guideways (), tooth pins () received within the guideways () for engaging with the tooth system (), wherein the tooth pins () are axially oriented within the guideways () by their respective longitudinal axes and are mounted within the guideways () in an axially displaceable manner, and a cam disc () rotatable about the rotational axis () for axially driving the tooth pins (), wherein a plurality of bearing segments () is disposed between the cam disc () and the tooth pins () for bearing the tooth pins (), and wherein, on a side facing the tooth pins, the bearing segments () have an elevation at least in sections formed as a spherical cap for bearing the respective tooth pin ().

Coaxial gear

Coaxial gear mechanism (), with a toothing () oriented axially relative to a rotational axis () of the coaxial gear mechanism (), a tooth carrier () with axially oriented guides (), teeth () which are received in the guides () for engagement with the toothing (), wherein the teeth are oriented with their respective longitudinal axes () axially in the guides () and are mounted so as to be axially movable in the guides (), and a cam disk () which is rotatable about the rotational axis () for axially driving the teeth (), wherein a plurality of bearing segments () is arranged between the cam disk () and the teeth () for supporting the teeth ().

Coaxial transmission

Coaxial gear mechanism, with a toothing system which is oriented axially with regard to a rotational axis of the coaxial gear mechanism; a tooth carrier with axially oriented guides; teeth which are received in the guides for engagement with the toothing system, the teeth being oriented with their respective longitudinal axes axially in the guides and being mounted in the guides such that they can be displaced axially; a cam disc which can be rotated about the rotational axis for the axial drive of the teeth; and a housing, in which a setting element for mounting the cam disc is provided, at least one bearing with rolling bodies being arranged between the setting element and the cam disc.

Bolt type angular gear mechanism () for transmitting a rotational movement from a first shaft to a second shaft which is orientated at an angle with respect to the first shaft, comprising a plurality of angular bolts () each having two members, a first bolt carrier () which can be rotated about a first axis and which has receiving members () for the first members of the angular bolts () in each case, a second bolt carrier () which can be rotated about a second axis and which has receiving members () for the second members of the angular bolts () in each case so that the bolt carriers () are connected by means of the angular bolts (), wherein the axes define an angle, and wherein the members of the angular bolts () are each constructed in a cylindrical manner as far as a plane of the angle bisector between the axes.

Bolt type angular gear mechanism

Gearing (), comprising a toothing (), a tooth carrier () with radially oriented guides with in each case one tooth root opening and one tooth tip opening, teeth () which are received in the guides for engagement with the toothing (), wherein the teeth () are mounted in the guides so as to be displaceable in the direction of their longitudinal axis and radially relative to the tooth carrier (), wherein a central section of the guides, respectively, has an internal profile which is uniform in the longitudinal direction of the guide, a cam disk () for the radial drive of the teeth (), wherein the teeth () have a run-in region between a respective tooth tip and a respective tooth body.

Gearing

A transmission, in particular a coaxial transmission or linear transmission, comprising a toothing, a tooth holder in which a plurality of tooth segments are accommodated to engage with the toothing, wherein the tooth segments are borne to be radially shiftable relative to the tooth holder, a drive element having a profiling for radially driving the tooth segments borne in a radially shiftable manner, wherein the transmission has inner initial stress.

Transmission

Gearing (), in particular coaxial gearing or linear gearing, having a toothing (), a tooth carrier () in which there is received a multiplicity of teeth () for engagement with the toothing, wherein the teeth () are mounted so as to be radially displaceable relative to the tooth carrier (), a cam disk () for the radial drive of the radially displaceably mounted teeth (), wherein the cam disk () has two encircling rims, between which there is arranged a raceway, rolling bodies () which are arranged on the running surface between the rims, and a multiplicity of pivot segments () which are arranged in encircling fashion on the rolling bearing bodies and which lie in each case by way of a rolling bearing surface against the rolling bodies (), wherein, on both sides of the rolling bearing surface, there is arranged in each case one rim bearing surface, wherein the two rim bearing surfaces lie at least partially against the rims.

Disclosed herein is a transmission having a tooth holder for holding teeth of a toothed ring, said teeth being arranged around an axis of rotation of the transmission, wherein the teeth are arranged in the tooth holder in such a way as to be movable and to be guided in a radial direction. The transmission furthermore has a drive element, which is rotatable about the axis of rotation, for driving the teeth in a radial direction, wherein the drive element has a cam contour with lobes in a radial direction. Swivel segments are arranged between the teeth and the drive element. A thrust washer is arranged in the tooth holder, at least on one side in an axial direction of the swivel segments. A method for producing a transmission according to the embodiments described herein is furthermore described.

Gearing (), in particular single-stage gearing having a transmission ratio of greater than 1 to 10, having an internal gear () with an internal toothing (), a first toothed ring with radially movable first teeth () for engaging into the internal toothing (), a second toothed ring with radially movable second teeth () for engaging into the internal toothing (), an inner shaft () on which is fastened a first cam disk () for the radial drive of the first teeth () and a second cam disk () for the radial drive of the second teeth (), and a load dividing device for dividing a torque transmitted via the toothed rings between the toothed rings.

In a gearing, in particular coaxial gearing, hollow shaft gearing, hypoid gearing, axial gearing or linear gearing, with a driving element (), an element () and an output element (), a stepping-up and transmission of a driving torque between driving element () and output element () are to take place via a plurality of movable tooth segments ().

A coaxial transmission, especially a hollow shaft drive, comprising a driving element () and a driven element (), a plurality of radially mobile toothed quadrants () providing a gear ratio and transmitting a driving torque between the driving element () and the driven element (). An internal gear () or especially the housing for receiving the inner gearing of the internal gear () are configured as a multipart structure.

A coaxial transmission, especially a hollow shaft transmission for industrial drive engineering, having a high power density. The transmission comprises an input element (), an element () and an output element, a drive torque being multiplied and transmitted between the input element () and the output element via a plurality of radially mobile toothed sections (). At least one toothed section () has a bearing element () which is enlarged in its effective zone with respect to an input element ().

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Reichenberg, Germany

Michael Schmidt