公开(公告)号：US10718419B2

公开(公告)日：2020-07-21

申请号：US15528706

申请日：2014-11-28

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Masaru Kobayashi

IPC: F16H49/00 ,  F16H57/04 ,  C10M103/00 ,  C10M103/02 ,  C10M103/06 ,  C10M171/06 ,  F16H1/32 ,  C10N20/06 ,  C10N30/06 ,  C10N40/04 ,  C10N50/08 ,  F16J15/50

Abstract: A strain wave gearing has contact parts which are the portions to be lubricated other than the teeth of an externally toothed gear and an internally toothed gear, the contact parts being respectively lubricated with an inorganic lubricating powder having a lamellar crystal structure. The lubricating powder, during the operation of the strain wave gearing, is crushed between the contact surfaces of each of the contact parts to move and adhere to the contact surfaces, thereby forming thin surface films thereon. Additionally, the powder is thinly spread by pressure and reduced into finer particles to change into a shape which facilitates intrusion into the space between the contact surfaces. By both the fine particles having changed in shape and the surface films, the lubrication of the contact parts is maintained. Neither the fine particles nor the surface films are viscous.

公开(公告)号：US10508729B2

公开(公告)日：2019-12-17

申请号：US15519650

申请日：2014-11-21

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Masaru Kobayashi

IPC: F16H57/04 ,  F16H49/00

Abstract: A strain wave gearing device has a grease temperature control mechanism for controlling the grease temperature of a portion of grease, of the grease filled inside an externally toothed gear of the strain wave gearing device, the portion of the grease being disposed on the outer peripheral side portion of a wave generator. The grease temperature control mechanism has a circular heater facing the outer peripheral side portion of the wave generator over the entire circumference from a direction of a device central axis line. By controlling the grease temperature of a specified portion inside the externally toothed gear, it is possible to reliably start the strain wave gearing device even in an extremely low temperature environment where the grease solidifies.

公开(公告)号：US09394985B2

公开(公告)日：2016-07-19

申请号：US14371446

申请日：2013-05-08

Applicant: HARMONIC DRIVE SYSTEMS INC.

Inventor： Masaru Kobayashi ,  Tatsuro Hoshina

IPC: F16H33/00 ,  F16H35/00 ,  F16H37/00 ,  F16H49/00 ,  F16D1/076 ,  F16H55/08 ,  F16H57/00

CPC classification number: F16H49/001 ,  F16D1/076 ,  F16H55/0833 ,  F16H57/0025 ,  F16H2049/003 ,  Y10T29/49465 ,  Y10T74/19647 ,  Y10T74/1987

Abstract: A strain wave gearing (1) has a flexible externally toothed gear (3) with a boss (7). A boss-side fastening surface (16) formed on the boss is coaxially superposed with a member-side fastening surface (15) of an output member (11), and the boss (7) and the output member are fastened by fastening bolts (13). The bolt tension of the fastening bolts (13) causes the engaging protuberances (20) of the boss-side fastening surface (16) to dig into the member-side fastening surface (15) by a predetermined dig-in depth. A large frictional force is produced in the fastening portions between the flexible externally toothed gear (3) and the output member (11). It is thereby possible to transmit the necessary torque by the bolt tension alone without using pins or a friction sheet together with the fastening bolts.

Abstract translation: 应变波传动装置（1）具有带有凸台（7）的柔性外齿轮（3）。 形成在凸台上的凸台侧紧固面（16）与输出构件（11）的构件侧固定面（15）同轴地重叠，并且凸台（7）和输出构件通过紧固螺栓 13）。 紧固螺栓（13）的螺栓张力导致凸台侧紧固表面（16）的接合突起（20）以预定的挖掘深度挖入构件侧紧固表面（15）。 在柔性外齿轮（3）和输出部件（11）之间的紧固部分产生较大的摩擦力。 因此，可以通过单独的螺栓张力传递必要的扭矩，而不用销或摩擦片与紧固螺栓一起使用。