Gearbox
AssigneeSumitomo Heavy Industries, Ltd.
InventorsYasumasa Yamasaki, Takuya Yoshimura
Life of this patent
Estimating the term…
Abstract
In a gearbox including three or more shaft holes, a vibration suppressor is formed with the gearbox and extends from at least one of shaft hole in a radial direction of the shaft hole. The vibration suppressor ensures a width which is greater than or equal to one fourth of the shaft hole diameter of the shaft hole, and a height that is greater than or equal to one sixth of the shaft hole diameter at a highest portion of the bivration suppressor.
Claims6
A gearbox having at least three or more shaft holes, said gearbox comprising:
- a vibration suppressor being formed to extend from at least one of the shaft holes in a radial direction of the one shaft hole, wherein,
- the vibration suppressor is configured to ensure a width greater than or equal to one fourth of a shaft hole diameter of the one shaft hole and a height greater than or equal to one sixth of the shaft hole diameter at a highest portion of the vibration suppressor.
A method for suppressing vibration in a gearbox, said method comprising the steps of:
- providing a gearbox having a plurality of shaft holes;
- forming a vibration suppressor extending from a first shaft hole of the plurality of shaft holes in a radial direction of the first shaft hole, said vibration suppressor being formed to be a width which is greater than or equal to one-fourth of the diameter of the first shaft hole, and formed to have a height which is greater than or equal to one-sixth of the diameter of the first shaft hole at a highest portion of the vibration suppressor.
A method for suppressing vibration in a gearbox, said method comprising the steps of:
- providing a gearbox having a plurality of shaft holes;
- forming a vibration suppressor extending from a first shaft hole of the plurality of shaft holes in a radial direction of the first shaft hole, said vibration suppressor being formed with a width which enables a natural frequency of the gearbox to be at least 2 kHz, and formed to have a height which is greater than or equal to one-sixth of the diameter of the first shaft hole at a highest portion of the vibration suppress.
Dependencies are inferred from the claim text.