Delta Electronics, Inc.

Hsien-Lung Tsai

Chi-Wen Chung

En-Yi Chu

Hung-Wei Lin

Ming-Li Tsao

Chin-Hsiang Chen

Wei-Ying Chu

Jen-Yuan Chen

An inner gear wheel with impact absorption structure and a reducer using same are disclosed. The inner gear wheel includes a body wheel, fixing holes, an impact absorption structure and buffer elements. The body wheel includes an inner ring surface surrounding an axis and inner gears disposed around the inner ring surface. Fixing holes penetrate the body wheel along an axial direction. The impact absorption structure is disposed corresponding to one of the fixing holes, and includes buffer grooves and a connecting slit. The buffer grooves are disposed at two sides of the corresponding fixing hole along a circumferential direction. The connecting slit extends along the circumferential direction between the inner ring surface and the fixing hole and connects the pair of buffer grooves. The buffer elements are disposed in the buffer grooves to absorb stress transmitted from an outer gear plate engaged with the inner gear wheel.

Inner gear wheel with impact absorption structure and reducer using same

A rotary bearing assembly includes an input shaft, an inner-ring component, an outer-ring component and a load element. The input shaft is configured to combine a rotating shaft of a motor to provide a power input. The inner-ring component includes a gear set, wherein the inner-ring component is sleeved on the input shaft through the gear set and driven by the input shaft. The outer-ring component is sleeved on the inner-ring component through a load element and engaged with the gear set, wherein when the gear set is driven by the input shaft to drive the inner-ring component, the gear set drives the outer-ring component, and the inner-ring component and the outer-ring component are rotated relatively, wherein one of the inner-ring component and the outer-ring component is served to provide a power output, and a rotational speed difference is between the power input and the power output.

Rotary bearing assembly

A speed reducer includes an input shaft, an input gear, a fixing gear and an output gear. The input shaft includes an eccentric structure. The input gear is disposed on the eccentric structure and includes first teeth of which each with a first contact portion and a second contact portion. The fixing gear and the output gear are disposed corresponding to the input gear, wherein the fixing gear includes second teeth, and the second teeth are in contact with the first contact portions, wherein the output gear includes third teeth, and the third teeth are in contact with the second contact portions. A first tooth number difference between the first teeth and the second teeth is different from a second tooth number difference between the first teeth and the third teeth.

Speed reducer

A bearing assembly and a rotary shaft apparatus employing the same are provided. The bearing assembly is rotatably coupled with a first shaft and a second shaft. The first bearing housing includes a first annular recess having a first axial depth. The first bearing is connected with the first annular recess and the first shaft and has a first axial thickness. The second bearing housing includes a second annular recess having a second axial depth. The second bearing is connected with the first annular recess, the second annular recess and the second shaft and has a second axial thickness. The spacer is disposed between the first bearing and the second bearing and has a third axial thickness. The sum of the first axial thickness, the second axial thickness and the third axial thickness is greater than the sum of the first axial depth and the second axial depth.

Growing community of inventors

Taoyuan, Taiwan

Hsien-Lung Tsai