Rotating Rod Mechanism for Out-of-Phase Reciprocating Motion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is no mechanism developed to cause a rod-shaped member to rotate while its rod parts perform out-of-phase reciprocating motions.
Innovation Solution
A drive mechanism comprising a rotatable rod with independently movable rod parts, a ring-shaped support member with a slide groove, and an outer cylinder with longitudinal grooves, where protrusions on the rod parts slide in the grooves, enabling rotation and out-of-phase reciprocating motions. Alternatively, cam followers and rotating cams with varying distances from the center of rotation are used to achieve out-of-phase reciprocating motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a rod-shaped member rotates while its rod parts perform reciprocating motions, then resistance and energy consumption are reduced, but the mechanism complexity increases
Solution Approach 1:
The rod-shaped member is divided into multiple rod parts (first rod part, second rod part, etc.) that can move independently relative to each other along the rotational axis. This segmentation allows each part to perform reciprocating motions while the entire rod rotates, reducing resistance and energy consumption without requiring complex external control mechanisms for each segment.
Solution Approach 2:
The rod parts are configured with dynamic characteristics that allow them to automatically perform reciprocating motions during rotation. The first rod part rotates about the rotational axis while the second rod part reciprocates along the rotational axis, creating a dynamic system that reduces resistance through controlled motion variations without complex control systems.
2Adaptability or versatility
If rod parts are made independently movable along the central axis, then out-of-phase reciprocating motions are achieved, but the structural complexity increases
Solution Approach 1:
The rod is segmented into multiple independently movable rod parts connected along the rotational axis. Each rod part can move reciprocally independently, enabling out-of-phase motions. The segmentation is achieved through simple connections that allow relative movement without complex mechanisms, maintaining structural simplicity while achieving versatile motion control.
Solution Approach 2:
The rod parts are designed with dynamic characteristics that enable automatic out-of-phase reciprocating motions during rotation. The first rod part rotates while the second rod part reciprocates along the axis, creating inherent dynamic behavior that achieves motion control capability without complex external control systems or additional structural elements.
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 mechanism allows a rod-shaped member to rotate while its parts perform out-of-phase reciprocating motions, reducing resistance and energy consumption, particularly suitable for applications like perforating apparatuses.
Implementation Method 1
the protrusions are capable of sliding in the slide groove and the longitudinal grooves
Implementation Method 2
rotating cams in each of which a distance from a center of rotation to an outer circumferential surface is not constant; the cam followers abut the outer circumferential surfaces of the respective rotating cams and are configured to move along the central axis as the rotating cams rotate
Data Source
AI summary
Provided is a mechanism that causes a rod-shaped member to rotate while causing rod parts, which are part of the rod-shaped member, to carry out out-of-phase reciprocating motions. A drive mechanism (100) in accordance with an aspect of the present invention includes: a rotatable rod (10) that includes rod parts (11) which are separated by a boundary along a central axis 1, the rod parts (11) each being independently movable along the central axis (1); support members (A and B) having a slide groove (31) that is in the form of a ring and that surrounds the rotatable rod (10); and an outer cylinder (50) that is disposed between the rotatable rod (10) and the support members (A and B) and that has longitudinal grooves (51) each extending along the central axis (1).