Bevel planetary gear mechanism applied to stand mixer
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Solution Overview
Problem
Current stand mixers with a planar planetary motion trail for their kneading hooks fail to achieve effective kneading, particularly in omnibearing and mixed kneading, which does not meet the needs of chefs.
Innovation Solution
A bevel planetary gear mechanism is applied to the stand mixer, comprising a spindle, center bevel gear, bevel planetary gears, internal bevel gear, and a kneading hook, where the kneading hook rotates and revolves within the bevel gear mechanism, utilizing a spring and steel balls for positioning, enabling a more efficient kneading action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a planar planetary motion trail is used for the kneading hook, then the structure is simple, but the kneading effect is poor and cannot achieve omnibearing mixed kneading
Solution Approach 1:
The patent introduces a bevel planetary gear mechanism that transforms the traditional planar (2D) planetary motion into a three-dimensional pitched motion trajectory. The kneading hook follows a spatial path combining rotation around the central axis with simultaneous movement along the axial direction, creating a more comprehensive mixing pattern that achieves omnibearing kneading coverage.
2Reliability
If a bevel planetary gear mechanism is used to achieve pitched kneading hook motion, then the kneading effect is improved, but the device complexity increases
Solution Approach 1:
The bevel planetary gear mechanism serves multiple functions simultaneously: it transmits power from the motor, generates the pitched planetary motion trajectory, and controls the rotational speed of the kneading hook. This multi-functionality consolidates what would otherwise require separate mechanisms into a single integrated system, reducing overall device complexity despite the sophisticated motion profile.
3Device complexity
If the kneading hook is vertically mounted for planar motion, then the structure is simple, but it cannot satisfy the needs of chefs for omnibearing mixed kneading
Solution Approach 1:
The patent transitions from a static vertical mounting arrangement to a dynamic bevel planetary gear system where the kneading hook's position and orientation continuously change during operation. The mechanism creates a pitched motion that dynamically adjusts the hook's trajectory, enabling it to reach different regions of the mixing bowl and achieve comprehensive omnibearing kneading coverage.
Data Source
AI summary
The disclosure discloses a bevel planetary gear mechanism applied to a stand mixer, including a center bevel gear (2), a first bevel planetary gear (10), a second bevel planetary gear (3), a third bevel planetary gear (4), an internal bevel gear (5) and a bevel planetary gear bracket (11), wherein, the center bevel gear (2) is mounted on a spindle (1); the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) are all engaged with the center bevel gear (2); the internal bevel gear (5) surrounds the first bevel planetary gear (10), the second bevel planetary gear (3) and the third bevel planetary gear (4) and are engaged with such three gears. By using the bevel planetary gear mechanism provided by the disclosure, the stand mixer has a pitched kneading hook, thereby improving the kneading effect of the stand mixer.