公开(公告)号：US20180320759A1

公开(公告)日：2018-11-08

申请号：US15964362

申请日：2018-04-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Jia-Ming Wu ,  Yu-Xian Huang

IPC: F16H1/32 ,  F16H55/34 ,  F16H57/022

CPC classification number: F16H1/32 ,  F16H55/34 ,  F16H57/022 ,  F16H2001/325 ,  F16H2057/0224

Abstract: A cycloid speed reducer includes two rotating disc assemblies. Each rotating disc assembly includes two cycloid discs. In other words, the cycloid speed reducer has four cycloid discs to be contacted with the corresponding rollers. Consequently, the load withstood by each cycloid disc is reduced. Since the cycloid speed reducer has stronger structural strength, the cycloid speed reducer can be applied to the high-load circumstance. Moreover, an eccentric assembly of the eccentric device includes plural eccentric cylinders. The eccentric cylinders are installed within the axle holes of the corresponding cycloid discs. Due to the plural eccentric cylinders, the eccentric direction of two cycloid discs is opposite to the eccentric direction of the other two cycloid discs. Consequently, it is not necessary to install an additional weight compensation device in the cycloid speed reducer to compensate the dynamic equilibrium.

公开(公告)号：US10677321B2

公开(公告)日：2020-06-09

申请号：US16013264

申请日：2018-06-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Jia-Ming Wu ,  Yu-Xian Huang ,  Kuo-Yuan Hung ,  You-Chiuan Hsu

IPC: F16H1/32 ,  H02K7/116 ,  F16H57/02 ,  H02K7/102

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion, a shaft portion and rotator portion. The rotator portion includes first and second eccentric rings. The speed reducing mechanism includes first, second and third roller assemblies and first and second cycloid disc sets. These roller assemblies include first rollers, second rollers and third rollers. The first cycloid disc set is mounted around the first eccentric ring, and includes first teeth and second teeth. The second cycloid disc set is mounted around the second eccentric ring, and includes third teeth and fourth teeth. The first teeth are contacted with the first rollers. The third teeth are contacted with the second rollers. The second teeth and the fourth teeth are contacted with the third rollers.

公开(公告)号：US10422414B2

公开(公告)日：2019-09-24

申请号：US15457589

申请日：2017-03-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Lun Ho ,  Ching-Hsiung Tsai ,  Jia-Ming Wu

IPC: F16H1/32 ,  B60K17/04

Abstract: A speed reducer includes a first transmission shaft, an eccentric wheel, a first roller assembly, a rotating wheel, a second roller assembly and a second transmission shaft. The rotating wheel includes a main body and an axle hole. The main body includes a convex structure and a concave structure. The convex structure is protruded from an outer periphery of the main body and has outer teeth. The outer teeth are contacted with the corresponding first rollers. The concave structure is concavely formed in a surface of the main body and includes inner teeth. The inner teeth are contacted with plural second rollers of the second roller assembly. The speed reducer of the present invention is an epicycloid-epicycloid speed reducer or a hypocycloid-hypocycloid speed reducer. Since the speed reducer is designed to have four operating situations, the speed reducer can have various reduction ratios.

公开(公告)号：US20170248195A1

公开(公告)日：2017-08-31

申请号：US15457589

申请日：2017-03-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Lun Ho ,  Ching-Hsiung Tsai ,  Jia-Ming Wu

IPC: F16H1/32

Abstract: A speed reducer includes a first transmission shaft, an eccentric wheel, a first roller assembly, a rotating wheel, a second roller assembly and a second transmission shaft. The rotating wheel includes a main body and an axle hole. The main body includes a convex structure and a concave structure. The convex structure is protruded from an outer periphery of the main body and has outer teeth. The outer teeth are contacted with the corresponding first rollers. The concave structure is concavely formed in a surface of the main body and includes inner teeth. The inner teeth are contacted with plural second rollers of the second roller assembly. The speed reducer of the present invention is an epicycloid-epicycloid speed reducer or a hypocycloid-hypocycloid speed reducer. Since the speed reducer is designed to have four operating situations, the speed reducer can have various reduction ratios.

公开(公告)号：US11604450B1

公开(公告)日：2023-03-14

申请号：US17694605

申请日：2022-03-14

Applicant: Delta Electronics, Inc.

Inventor： Jia-Ming Wu ,  Chung-Chan Hsu

IPC: G05B19/4065 ,  B23Q15/12

Abstract: A method for determining an abnormal processing of a processing machine is disclosed, and includes: obtaining an acceleration signal corresponding to an acceleration of a tool tip from an accelerometer arranged on a tool-end of the processing machine; performing an integral process to the acceleration signal to generate a movement information; obtaining a motor position information of a motor used to bring the tool-end to move; respectively performing a coordinate alignment process to the movement information and the motor-position information to generate a transformed movement information and a position vector respectively being described based on a workpiece-end coordinates system used by a workpiece-end of the processing machine; combining the transformed movement information and the position vector to generate a relative movement value between the tool tip and the workpiece-end; and, determining whether an abnormal processing occurs based on the relative movement value.

公开(公告)号：US10520062B2

公开(公告)日：2019-12-31

申请号：US15964362

申请日：2018-04-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Jia-Ming Wu ,  Yu-Xian Huang

IPC: F16H1/32 ,  F16H55/34 ,  F16H57/022 ,  F16H29/04 ,  F16H29/06

Abstract: A cycloid speed reducer includes two rotating disc assemblies. Each rotating disc assembly includes two cycloid discs. In other words, the cycloid speed reducer has four cycloid discs to be contacted with the corresponding rollers. Consequently, the load withstood by each cycloid disc is reduced. Since the cycloid speed reducer has stronger structural strength, the cycloid speed reducer can be applied to the high-load circumstance. Moreover, an eccentric assembly of the eccentric device includes plural eccentric cylinders. The eccentric cylinders are installed within the axle holes of the corresponding cycloid discs. Due to the plural eccentric cylinders, the eccentric direction of two cycloid discs is opposite to the eccentric direction of the other two cycloid discs. Consequently, it is not necessary to install an additional weight compensation device in the cycloid speed reducer to compensate the dynamic equilibrium.

公开(公告)号：US20180372187A1

公开(公告)日：2018-12-27

申请号：US16013264

申请日：2018-06-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ching-Hsiung Tsai ,  Jia-Ming Wu ,  Yu-Xian Huang ,  Kuo-Yuan Hung ,  You-Chiuan Hsu

IPC: F16H1/32 ,  F16H57/02 ,  H02K7/116 ,  H02K7/102

CPC classification number: F16H1/32 ,  F16H57/02 ,  F16H2001/327 ,  F16H2057/02034 ,  H02K7/102 ,  H02K7/116

Abstract: A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion, a shaft portion and rotator portion. The rotator portion includes first and second eccentric rings. The speed reducing mechanism includes first, second and third roller assemblies and first and second cycloid disc sets. These roller assemblies include first rollers, second rollers and third rollers. The first cycloid disc set is mounted around the first eccentric ring, and includes first teeth and second teeth. The second cycloid disc set is mounted around the second eccentric ring, and includes third teeth and fourth teeth. The first teeth are contacted with the first rollers. The third teeth are contacted with the second rollers. The second teeth and the fourth teeth are contacted with the third rollers.