Perpendicular Motor Pin Gear Transmission for Compact Height
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Solution Overview
Problem
Conventional power transmission devices have a high overall height, limiting their application to compact apparatuses such as index systems, where a reduced height and stable operation are required.
Innovation Solution
A power transmission device with a pin gear and a motor arranged perpendicular to the rotation axis, coupled with a motion transfer unit that includes a deceleration module with bevel gears and bearings, allowing for efficient transfer of rotational motion while minimizing overall height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the motor is directly coupled to the pinion rotation shaft with a decelerator, then the power transmission can be achieved, but the overall height of the power transmission device is increased
Solution Approach 1:
The patent repositions the motor from a vertical arrangement (directly coupled to pinion shaft) to a horizontal arrangement (perpendicular to pinion rotation axis). This dimensional change allows the decelerator to be integrated within the unit housing rather than extending vertically, thereby reducing the overall height while maintaining power transmission functionality through the motion transfer unit
Solution Approach 2:
The decelerator is nested within the unit housing structure, with the motor positioned perpendicular to the pinion rotation axis. This nesting arrangement integrates multiple components (motor, decelerator, motion transfer unit) into a compact configuration that reduces overall device height while preserving the power transmission function
2Adaptability or versatility
If the overall height is reduced for compact apparatus application, then the adaptability to compact apparatus is improved, but the stability of operation may be compromised
Solution Approach 1:
By changing the motor arrangement to perpendicular positioning relative to the pinion rotation axis, the patent achieves compact height suitable for index systems while maintaining stable operation through proper integration of the motion transfer unit and decelerator within the unit housing
Solution Approach 2:
The patent combines the motor, decelerator, and motion transfer unit into an integrated unit housing structure. This merging of components creates a compact assembly that maintains operational stability while reducing overall height for application in compact apparatus such as index systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device achieves a reduced overall height, enabling stable operation and wider application to compact apparatuses like index systems, while maintaining efficient motion transfer.
Implementation Method 1
a motion transfer unit connected to the pin gear and the motor between the pin gear and the motor, and transferring a rotational motion of the motor to a rotational motion of the pin gear
Implementation Method 2
a built-in deceleration module which may include a drive gear, a driven gear engaged with the drive gear, and a plurality of bearings
Data Source
AI summary
A power transmission device includes a pin gear having a plurality of power transmission pins that are relatively moved corresponding to a tooth shape formed on an outer gear, a motor arranged in a direction crossing a rotation axis of the pin gear, and generating power to rotate the pin gear, and a motion transfer unit connected to the pin gear and the motor between the pin gear and the motor, and transferring a rotational motion of the motor to a rotational motion of the pin gear.