Friction transmission device
AssigneeSumitomo Heavy Industries, Ltd.
InventorToshiya Nagumo
Life of this patent
Estimating the term…
Abstract
Provided is a friction transmission device including an input raceway ring, a planetary rolling element that is disposed around a rotation axis of the input raceway ring and comes into contact with the input raceway ring; an output raceway ring that comes into contact with the planetary rolling element and is connected to an output shaft, and a first support raceway ring and a second support raceway ring that come into contact with the planetary rolling element. A quadrangle is formed by extension lines of normal vectors at contact points between the planetary rolling element and the respective raceway rings.
Claims16
A friction transmission device comprising:
- an input raceway ring;
- a planetary rolling element that is disposed around a rotation axis of the input raceway ring and comes into contact with the input raceway ring;
- an output raceway ring that comes into contact with the planetary rolling element and is connected to an output shaft, the output raceway ring being configured to change a speed of rotation transmitted from the input raceway ring and output the rotation with changed speed;
- and
- a first support raceway ring and a second support raceway ring that come into contact with the planetary rolling element;
- a relative position change mechanism that changes relative positions of the input raceway ring, the output raceway ring, the first support raceway ring, and the second support raceway ring,
- wherein a quadrangle is formed by extension lines of normal vectors at contact points between the planetary rolling element and the respective raceway rings, and
- wherein the relative position change mechanism includes a moving mechanism that integrally moves the input raceway ring and the first support raceway ring in the same axial direction.
A friction transmission device comprising:
- an input raceway ring;
- a planetary rolling element that is disposed around a rotation axis of the input raceway ring and comes into contact with the input raceway ring;
- an output raceway ring that comes into contact with the planetary rolling element and is connected to an output shaft, the output raceway ring being configured to change a speed of rotation transmitted from the input raceway ring and output the rotation with changed speed;
- and
- a first support raceway ring and a second support raceway ring that come into contact with the planetary rolling element,
- wherein the planetary rolling element is supported by the input raceway ring, the output raceway ring, the first support raceway ring, and the second support raceway ring without being supported by a shaft member,
- wherein with respect to the planetary rolling element, the input raceway ring is disposed on one side of a radially outer side and a radially inner side, and
- wherein the first support raceway ring is disposed on the one side and is rotatable relative to the input raceway ring.
A friction transmission device comprising:
- an input raceway ring;
- a planetary rolling element that is disposed around a rotation axis of the input raceway ring and comes into contact with the input raceway ring;
- an output raceway ring that comes into contact with the planetary rolling element and is connected to an output shaft, the output raceway ring being configured to change a speed of rotation transmitted from the input raceway ring and output the rotation with changed speed;
- and
- a first support raceway ring and a second support raceway ring that come into contact with the planetary rolling element;
- wherein a quadrangle is formed by extension lines of normal vectors at contact points between the planetary rolling element and the respective raceway rings,
- wherein with respect to the planetary rolling element, the input raceway ring is disposed on one side of a radially outer side and a radially inner side, and
- wherein the first support raceway ring is disposed on the one side and is rotatable relative to the input raceway ring.
Dependencies are inferred from the claim text.