公开(公告)号：US20190068043A1

公开(公告)日：2019-02-28

申请号：US16073169

申请日：2016-02-02

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Toshiki MARUYAMA

IPC: H02K41/035 ,  H02K11/21 ,  G02B7/04

Abstract: A linear motor includes a motor movable body which has symmetrical structure with respect to a vertical plane and a horizontal plane that include the motor center axis line. Two linear bearings disposed in a space on the inner side of a rectangular tubular movable coil of the motor movable body are disposed symmetrically to the left and right of the center axis line so that the bearing support center coincides with the motor center axis line. Thrust generation sections of the motor movable body are disposed symmetrically above and below the motor center axis line, so that the thrust center coincides with the motor center axis line. Since the center of gravity of the motor movable body, the thrust center and the bearing support center coincide with the motor center axis line, a high responsive liner motor can be realized with no decrease in the thrust/movable body mass ratio.

公开(公告)号：US20180112709A1

公开(公告)日：2018-04-26

申请号：US15565333

申请日：2015-04-17

Applicant: Harmonic Drive Systems Inc.

Inventor： Toshiki MARUYAMA ,  Kazumasa FURUTA

IPC: F16C32/06 ,  H01L21/02 ,  F16C33/72 ,  H01L21/67

CPC classification number: H02K5/15 ,  F16C19/54 ,  F16C35/042 ,  F16C41/007 ,  F16C2380/26 ,  H01L21/304 ,  H02K5/10 ,  H02K5/1732 ,  H02K5/22 ,  H02K11/215 ,  H02K2205/09

Abstract: A static pressure seal-equipped motor (1) in which front and rear gaps are sealed by first and second static pressure seal portions (30, 40) disposed at first and second axial end portions (12a, 12c) of a motor rotating shaft (12) protruding toward front and rear. Sealing gas supplied to sealing gaps (32, 42) of the first and second static pressure seal portions (30, 40) is caused to diverge and flow to chemical liquid atmospheres (5a, 5b) and a motor chamber (18) or an encoder chamber (21) into the chemical liquid atmospheres (5a, 5b), and also prevent entry of chemical liquid-containing gas from the chemical liquid atmospheres (5a, 5b) into the motor chamber (18) or encoder chamber (21).

公开(公告)号：US20170051817A1

公开(公告)日：2017-02-23

申请号：US14772440

申请日：2014-05-16

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Toshiki MARUYAMA

IPC: F16H49/00 ,  F16H57/029 ,  F16H57/04 ,  F16H57/025

CPC classification number: F16H49/001 ,  F16H57/025 ,  F16H57/029 ,  F16H57/04 ,  F16H2049/003

Abstract: A cup-type hollow strain wave gearing of a hollow actuator has a seal part assembled inside a cup-shaped externally toothed gear. The seal part seals between a boss of the externally toothed gear and a plug of the wave generator so as to prevent lubricant from leaking from the side of the externally toothed gear into a hollow part. Since the seal part employs an oil seal and an O-ring, it is able to be constituted inexpensively and to surely prevent leakage of low-viscosity lubricant.

Abstract translation: 空心致动器的杯形空心应变波传动装置具有组装在杯形外齿轮内的密封部分。 密封部分在外齿轮的凸台和波浪发生器的塞子之间密封，以防止润滑剂从外齿齿轮的侧面泄漏到中空部分中。 由于密封部采用油封和O型圈，所以能够廉价地构成，并且可靠地防止低粘度润滑剂的泄漏。