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US 11,027,421 B2Granted
Robot and robot system
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsNaoyuki Ohtsubo, Tsuyoshi Ito, Yuji Ishimaru
Life of this patent
Estimating the term…
Abstract
A robot is provided which has: a housing including a plurality of joints; a reduction gear placed in the joint, the reduction gear including a lubrication chamber where a gear mechanism for slowing down and transmitting an output of a motor and lubricant is sealed; and an air chamber placed inside the housing, the air chamber communicating with the lubrication chamber.
Claims20
A robot, comprising:
- a base;
- a reduction gear connected to the base and comprising a lubrication chamber and a gear mechanism positioned in the lubrication chamber;
- an air chamber positioned inside the base and communicating with the lubrication chamber sealed to hold lubricant;
- and
- an arm connected to the reduction gear and configured to turn around a rotation axis of the reduction gear with respect to the base such that the reduction gear is positioned in a joint between the arm and the base;
- and
- a motor connected to the gear mechanism of the reduction gear and configured to generate driving force for turning the arm around the rotation axis of the reduction gear with respect to the base,
- wherein the gear mechanism in the reduction gear is configured to slow down and transmit an output of the motor such that the arm turns around the rotation axis of the reduction gear with respect to the base, and an outer frame of the base and the reduction gear includes a base casing, a flange member and a reduction gear casing such that the flange member is attached to the reduction gear casing on one side and to the base casing on the other side and that the air chamber is positioned in the base casing and outside the reduction gear casing.
5 more elements
A robot, comprising:
- a base;
- a reduction gear connected to the base and comprising a lubrication chamber and a gear mechanism positioned in the lubrication chamber;
- an air chamber positioned inside the base and communicating with the lubrication chamber sealed to hold lubricant;
- and
- an arm connected to the reduction gear and configured to turn around a rotation axis of the reduction gear with respect to the base such that the reduction gear is positioned in a joint between the arm and the base;
- and
- a motor connected to the gear mechanism of the reduction gear and configured to generate driving force for turning the arm around the rotation axis of the reduction gear with respect to the base,
- wherein the gear mechanism in the reduction gear is configured to slow down and transmit an output of the motor such that the arm turns around the rotation axis of the reduction gear with respect to the base, and an outer frame of the base and the reduction gear includes a base casing, a flange member and a reduction gear casing such that the flange member is fixed to the reduction gear casing on one side and to the base casing on the other side, the air chamber is positioned in the base casing and outside the reduction gear casing, and the air chamber is positioned on a surface of the flange member.
5 more elements
Dependencies are inferred from the claim text.