US 12,311,537 B2
Seal structure for protecting a motor of a robot
Xiaodong Cao, Shanghai (CN); Kaiwei Chen, Shanghai (CN); and Jiajie Sha, Shanghai (CN)
Assigned to ABB Schweiz AG, Baden (CH)
Appl. No. 18/006,819
Filed by ABB Schweiz AG, Baden (CH)
PCT Filed Sep. 14, 2020, PCT No. PCT/CN2020/114996
§ 371(c)(1), (2) Date Jan. 25, 2023,
PCT Pub. No. WO2022/052089, PCT Pub. Date Mar. 17, 2022.
Prior Publication US 2023/0271338 A1, Aug. 31, 2023
Int. Cl. F16H 57/029 (2012.01); B25J 9/10 (2006.01); B25J 9/12 (2006.01); B25J 19/00 (2006.01); H02K 5/10 (2006.01); H02K 7/00 (2006.01); F16H 57/02 (2012.01)
CPC B25J 19/0075 (2013.01) [B25J 9/102 (2013.01); B25J 9/126 (2013.01); F16H 57/029 (2013.01); H02K 5/10 (2013.01); H02K 7/003 (2013.01); F16H 2057/02034 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A robot comprising:
a frame comprising:
a planar surface, and
a step hole,
wherein the frame comprises at least one of a casing of a joint of the robot or a base of the robot;
a motor mounted to the frame,
wherein the motor contacts the planar surface of the frame, and the motor comprises a first protrusion positioned in the step hole;
a driving member comprising a shaft portion mounted to the motor at the first protrusion and an output portion configured to engage a downstream driving member;
a seal ring coupled to the frame and comprising an inner annular portion; and
a collar comprising:
an outside peripheral surface in contact with the inner annular portion of the seal ring,
wherein the outside peripheral surface of the collar being in contact with the inner annular portion of the seal ring is configured to reduce a moment of inertia of the driving member, and
a mounting portion,
wherein the shaft portion of the driving member is mounted to the mounting portion of the collar to secure the collar to the shaft portion.