Gear Shift Linkage Assembly With Dual-Elastic Vibration Damping
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Solution Overview
Problem
The conventional gear shift linkage mechanism suffers from a poor damping effect due to limited deformable displacement and bearing force, leading to inadequate cushioning and increased risk of transmission damage.
Innovation Solution
A gear shift linkage mechanism incorporating a connecting member with a cavity, a gear shift linkage, and elastic elements that allow for adjustable movement and damping, eliminating the need for damping rubber by utilizing first and second elastic elements to balance and damp vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If damping rubber is used to buffer the gear shift rocker, then the structure is simple, but the deformable displacement and bearing force are limited, resulting in poor damping effect
Solution Approach 1:
The damping function is segmented into multiple independent elastic elements (first elastic element and second elastic element) positioned at different locations. Each elastic element independently provides damping in specific directions, collectively achieving comprehensive vibration attenuation without requiring a single complex damping component.
Solution Approach 2:
The patent changes the material parameter from rubber (viscoelastic) to elastic elements (spring-based), fundamentally altering the damping mechanism. This enables larger deformable displacement and bearing force while maintaining structural simplicity, directly resolving the contradiction between simple structure and effective damping.
2Stability of the object's composition
If the gear shift linkage is rigidly connected, then the structure is stable, but vibration transmission attenuation is small, causing poor damping effect
Solution Approach 1:
The patent introduces dynamic elasticity into the previously rigid linkage system. The elastic elements allow the linkage to dynamically adapt to vibration loads, providing both stability during normal operation and vibration attenuation during gear shifting, thus resolving the contradiction between structural stability and vibration attenuation.
3Force
If damping rubber with limited deformable displacement is used, then the bearing force is limited, but the buffer stroke is insufficient, resulting in poor cushioning effect
Solution Approach 1:
The patent extends the damping action into multiple spatial dimensions by positioning elastic elements at different locations and orientations. This multi-dimensional arrangement increases the effective buffer stroke without compromising bearing force, resolving the contradiction between limited deformable displacement and insufficient buffer stroke.
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 enhances the buffering and damping efficiency of the gear shift linkage mechanism, reduces vibration transmission, and protects the transmission by providing a larger buffer stroke and adjustable length, thereby improving shifting reliability and reducing the risk of damage.
Implementation Method 1
a first elastic element formed on one end of the gear shift linkage, one end of the first elastic element abutting against one end of the limiting portion, and another end of the first elastic element being supported on one end, which is distal from the first through hole, of the cavity; and a second elastic element sleeved on another end of the gear shift linkage
Data Source
AI summary
A gear shift linkage mechanism includes a gear shift linkage assembly and a spherical bowl for connecting to a gear shift rocker arm. The gear shift linkage assembly includes a connecting member, a gear shift linkage, a first elastic element, and a second elastic element. One end of the connecting member is connected with the spherical bowl, one end of the gear shift linkage is movably configured in the cavity. One end of the first elastic element presses against the limiting portion, and another end of the first elastic element is supported on the cavity. One end of the second elastic element presses against the limiting portion, and another end of the second elastic element is supported on the first through hole. The gear shift linkage mechanism efficiently improves the buffering and damping effect of the gear shift linkage assembly, and thus prevents damage of the transmission.