Differential Chain Drive for Balanced Walking Vehicle Traction
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Solution Overview
Problem
Non-motorized vehicles face issues with unilateral power transmission leading to imbalanced power distribution, stability, and safety problems, especially during turning or on uneven surfaces, due to the unilateral driving wheel causing skidding and loss of traction.
Innovation Solution
A transmission apparatus with a double-chain configuration that includes a differential and half shafts for bilateral drive, allowing synchronized rotation of left and right wheels through separate transmission chains, with variable speed flywheels and rocker arms for adaptive speed adjustment and shock absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unilateral driving wheel configuration is used, then the structure is simple, but power transmission is imbalanced causing skidding and loss of traction
Solution Approach 1:
The transmission system is segmented into two independent transmission chains: a left transmission chain connecting the left driving wheel to the power source, and a right transmission chain connecting the right driving wheel to the power source. This segmentation allows each wheel to receive power independently, enabling balanced power transmission to both driving wheels while maintaining structural simplicity through modular chain drive design
Solution Approach 2:
The patent merges two transmission chains into a unified bilateral drive system where both left and right driving wheels are powered simultaneously. The frame structure integrates both transmission chains, and the synchronous control mechanism combines the operation of both wheels to achieve balanced power transmission, eliminating the skidding and traction loss problems of unilateral drive while keeping the overall structure relatively simple
2Ease of operation
If a unilateral driving wheel is used, then the device is simple to operate, but stability and safety are compromised during turning or on uneven surfaces
Solution Approach 1:
The transmission system incorporates dynamic adjustment capabilities through variable speed flywheels on both the left and right sides. These flywheels can independently adjust their rotational speeds based on road conditions and turning requirements, allowing the vehicle to maintain stability during turning or on uneven surfaces while preserving ease of operation through automatic adaptation rather than complex manual control
3Device complexity
If a unilateral driving wheel configuration is adopted, then the device complexity is low, but the vehicle is prone to skidding and loss of traction
Solution Approach 1:
The transmission system is divided into separate left and right transmission chains, each independently powering one driving wheel. This segmentation ensures that each wheel receives adequate power independently, preventing the skidding and traction loss that occur in unilateral drive configurations, while maintaining relatively low device complexity through the use of simple chain drive mechanisms
Solution Approach 2:
The patent incorporates feedback mechanisms through the differential transmission and variable speed flywheels that automatically adjust power distribution based on the actual running state of the vehicle. When one wheel encounters resistance or skidding conditions, the system automatically adjusts power allocation to prevent traction loss, eliminating harmful skidding effects while keeping the transmission system relatively simple
4Device complexity
If unilateral power transmission is used, then the structure is simple, but energy loss increases due to imbalanced power distribution
Solution Approach 1:
The patent employs dynamic power distribution through a differential transmission mechanism that automatically adjusts the allocation of power between the left and right driving wheels based on actual running conditions. Variable speed flywheels further optimize energy utilization by storing and releasing energy as needed. This dynamic adjustment ensures balanced power distribution, reducing energy loss from uneven load distribution while maintaining structural simplicity through conventional mechanical components
Solution Approach 2:
The transmission system utilizes variable speed flywheels that can change their rotational speed parameters independently on the left and right sides. This parameter adjustment capability allows the system to optimize power transmission efficiency by matching the rotational speed of each driving wheel to the specific road conditions and vehicle state, reducing energy loss due to slippage and imbalanced power delivery while keeping the overall structure simple
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 achieves balanced power transmission, improved stability and maneuverability, reduces energy loss, and enhances adaptability to different road conditions, ensuring efficient power distribution and reduced wheel skidding.
Implementation Method 1
a transmission assembly including a differential, a left half shaft and a right half shaft, wherein the differential is in transmission connection with the driving wheel disc, the left half shaft and the right half shaft are arranged on a left side and a right side of the differential, respectively
Implementation Method 2
the left half shaft is fixedly provided with a left driving flywheel, the left driving flywheel is in transmission connection with the left flywheel through a left transmission chain, the right half shaft is provided with a right driving flywheel, and the right driving flywheel is in transmission connection with the right flywheel through a right transmission chain
Implementation Method 3
a transmission assembly including a differential, a left half shaft and a right half shaft, wherein the differential is in transmission connection with the driving wheel disc
Data Source
AI summary
Disclosed are a transmission apparatus and a walking device. The transmission apparatus includes: a frame assembly including a first end and a second end which are arranged opposite to each other, a driving wheel disc rotationally arranged at the first end; a left driven wheel set arranged on a left side of the second end and including a left wheel and a left flywheel which rotate synchronously; a right driven wheel set arranged on a right side of the second end and including a right wheel and a right flywheel which rotate synchronously; and a transmission assembly including a differential in transmission connection with the driving wheel disc, and a left half shaft and a right half shaft arranged on a left side and a right side of the differential and in transmission connection with the differential, wherein the left half shaft is fixedly provided with a left driving flywheel.