Nested Gear Mixer Blade Bundle for Low-Eccentricity Counter-Rotation
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Solution Overview
Problem
Existing mixer technologies face issues with rotational efficiency, stability, reliability, noise, increased production costs, and miniaturization due to the use of multiple gears for bidirectional rotation, leading to a bulky design.
Innovation Solution
A bidirectional simultaneous rotary blade bundle for a mixer is proposed, featuring inner gear teeth with a belt shape on the reverse rotor and horizontal insertion gears arranged at equal intervals to engage with both the central and inner gear teeth, minimizing the number of parts and assembly time, and ensuring stable and reliable rotation without eccentricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple driven gears and a reverse rotation gear are used to transfer rotational force bidirectionally, then bidirectional rotation is achieved, but device complexity and volume increase
Solution Approach 1:
The patent combines multiple gear functions into a single integrated reverse rotor structure. The reverse rotor incorporates both the reverse rotation function and the power transmission function through its internal gear teeth, eliminating the need for separate driven gears and reverse rotation gear. This merging of functions directly reduces the number of parts while maintaining bidirectional rotation capability.
Solution Approach 2:
The patent implements a nested gear structure where the reverse rotor contains internal gear teeth that engage with external gear teeth on the drive shaft. This nested arrangement allows the reverse rotation mechanism to be housed within the existing rotational structure, minimizing additional volume while achieving bidirectional operation.
2Power
If driven gears are installed eccentrically to transfer power, then power transmission is achieved, but rotational stability and reliability deteriorate
Solution Approach 1:
The patent uses asymmetric gear tooth positioning on the reverse rotor. The internal gear teeth are arranged off-center relative to the reverse rotor's rotational axis, creating an asymmetric engagement pattern with the external gear teeth. This asymmetric design enables effective power transmission while maintaining rotational stability through the controlled eccentric engagement.
Solution Approach 2:
The patent creates a mirrored gear engagement system where the internal gear teeth on the reverse rotor replicate the engagement pattern of traditional external gears. By copying the fundamental gear meshing principle while adapting it to an internal-external tooth configuration, the patent achieves reliable power transmission without the instability associated with conventional eccentric gear installations.
3Power
If multiple gears occupy large volume in horizontal and vertical directions, then power transmission is achieved, but product miniaturization is hindered
Solution Approach 1:
The patent transitions from a horizontal gear arrangement to a vertical nested arrangement. The internal gear teeth on the reverse rotor engage with external gear teeth in a vertical stacking configuration, utilizing the vertical dimension more effectively. This dimensional change allows compact packaging of the power transmission mechanism, significantly reducing the horizontal footprint and overall volume of the blade bundle.
4Adaptability or versatility
If multiple gears and assembly steps are used, then bidirectional rotation is achieved, but assembly time and production cost increase
Solution Approach 1:
The patent merges multiple assembly steps into a single integrated reverse rotor component. Instead of separately installing driven gears, reverse rotation gear, and connecting them through multiple steps, the reverse rotor is manufactured as a single piece with pre-formed internal gear teeth that directly engage with the drive shaft. This merging of components and assembly steps dramatically reduces assembly time and production complexity.
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
This configuration prevents eccentricity and noise, maintains rotational balance, reduces production costs, and allows for miniaturization by minimizing the number of parts and volume, resulting in a more efficient and compact mixer design.
Implementation Method 1
a plurality of horizontal insertion gears engaged with the central gear, provided at equal intervals to each other, and configured to be rotated in place in a reverse direction according to a rotation of the central gear
Data Source
AI summary
Provided is a bidirectional simultaneous rotary blade bundle for a mixer, the bidirectional simultaneous rotary blade bundle including: a housing; a forward rotary shaft installed on the housing; a forward rotation blade provided on the forward rotary shaft; a central gear axially installed on the forward rotary shaft; horizontal insertion gears engaged with the central gear; a reverse rotor, of which inner gear teeth are engaged with and rotate on the outside of the horizontal insertion gears; and a reverse rotation blade installed on the reverse rotor, wherein the horizontal insertion gears are rotated in the reverse direction according to the forward rotation of the central gear such that the inner gear teeth are rotated in the reverse direction.