Bidirectional simultaneous rotary blade bundle for mixer

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Solution Overview

Problem

Existing mixer technologies face issues with rotational efficiency, stability, and noise due to eccentric power transmission, increased part count, and complexity, leading to higher production costs and difficulty in miniaturization.

Innovation Solution

A bidirectional simultaneous rotary blade bundle for a mixer is designed with horizontal insertion gears engaged at equal intervals between the inner gear teeth and central gear, reducing the number of parts and assembly time, and eliminating the need for multiple gears, thereby maintaining rotating balance and minimizing noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple driven gears are used to transfer rotational force to the reverse rotation gear, then bidirectional rotation is achieved, but rotational efficiency and stability deteriorate due to eccentric installation

Engineering Contradiction:

Improvebidirectional rotation capabilityVSAvoidrotational stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs asymmetric gear arrangement where the driven gear is positioned offset from the center, creating intentional eccentricity that balances the reverse rotation mechanism. This asymmetric design allows the reverse rotation gear to rotate bidirectionally while maintaining rotational stability through the strategic placement of counterweights and balanced gear teeth distribution.

Inventive Principle:

Principle #4Asymmetry

2Adaptability or versatility

If multiple gears are used for power transmission, then bidirectional rotation is achieved, but device complexity and production cost increase

Engineering Contradiction:

Improvebidirectional rotation capabilityVSAvoidnumber of parts

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple gear functions into a single integrated reverse rotation gear assembly. The driven gear and reverse rotation gear are combined into one component that performs both power transmission and bidirectional rotation functions, eliminating the need for separate reverse rotation gears and reducing the total number of parts while maintaining the bidirectional rotation capability.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple gears are used for power transmission, then bidirectional rotation is achieved, but assembly time and production cost increase

Engineering Contradiction:

Improvebidirectional rotation capabilityVSAvoidassembly time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent segments the blade bundle into modular components that can be assembled independently and then quickly connected. The reverse rotation gear assembly is pre-assembled as a module that can be installed as a single unit, significantly reducing assembly time compared to installing multiple separate gears individually.

Inventive Principle:

Principle #1Segmentation

4Adaptability or versatility

If large volume gears are used for power transmission, then bidirectional rotation is achieved, but miniaturization of the mixer becomes difficult

Engineering Contradiction:

Improvebidirectional rotation capabilityVSAvoidblade bundle volume

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent implements a nested gear arrangement where the driven gear and reverse rotation gear are positioned concentrically, with one gear effectively nested within the orbital path of the other. This nesting allows both gears to occupy a smaller combined volume while still achieving the bidirectional rotation function, enabling miniaturization of the overall mixer design.

Inventive Principle:

Principle #7Nested doll (Nesting)

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 solution ensures stable and reliable rotation, reduces production costs, and allows for miniaturization of the mixer by preventing eccentricity and minimizing the volume occupied by the blade bundle.

Implementation Method 1

the plurality of horizontal insertion gears is engaged with both the inner gear teeth and the central gear

Methodology Applied

Scientific EffectGear meshing: Gear

Data Source

PatentEP3884823B1Bidirectional simultaneous rotary blade bundle for mixer

Publication Date: 2024.07.31 CUCKOO ELECTRONICS CO LTD

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Figure 3~3(b)

AI summary

Proposed is a bidirectional simultaneous rotary blade bundle for a mixer, the bidirectional simultaneous rotary blade bundle comprising: a housing (110); a forward rotary shaft (120) installed on the housing (110); a forward rotation blade (K1) provided on the forward rotary shaft (120); a central gear (130) axially installed on the forward rotary shaft (120); horizontal insertion gears (141, 142, and 143) engaged with the central gear (130); a reverse rotor (160), of which inner gear teeth (164) are engaged with and rotate on the outside of the horizontal insertion gears (141, 142, and 143); and a reverse rotation blade (K2) installed on the reverse rotor (160), wherein the horizontal insertion gears (141, 142, and 143) are rotated in the reverse direction according to the forward rotation of the central gear (130) such that the inner gear teeth (164) are rotated in the reverse direction.