Pivoting Motor Mount for Rolling Cover Torque Transfer
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Solution Overview
Problem
Motorized rolling cover systems for open-top vehicles face premature deterioration and potential catastrophic failure due to oscillating stresses at the arm-shaft connection caused by deviations from optimal angles during installation and use, leading to excessive wear and potential damage from torque transfer.
Innovation Solution
The motor mount is designed to pivot relative to the arm, allowing hinge-type movement in specific planes or using resilient materials to absorb oscillating forces, reducing stress without compromising torque transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the motor is rigidly attached to the arm and roll shaft, then torque transfer is efficient, but oscillating stresses cause premature deterioration and potential catastrophic failure
Solution Approach 1:
The motor mount is made pivotable relative to the arm, allowing dynamic adjustment of the motor's position and orientation. This pivotability enables the system to absorb oscillating stresses while maintaining effective torque transfer during normal operation, resolving the contradiction between rigid torque transfer and stress absorption.
Solution Approach 2:
The system changes the physical state of the motor-mount connection from fixed to pivotable, allowing angular movement. This parameter change enables the motor mount to accommodate angle deviations and oscillating stresses without compromising the rigid connection needed for torque transfer during cover rolling operations.
2Reliability
If the arm-shaft connection is made flexible to absorb oscillating forces, then stress is reduced, but torque transfer efficiency may be compromised
Solution Approach 1:
The pivotable motor mount provides dynamic flexibility that allows the system to absorb oscillating stresses during operation while maintaining sufficient rigidity for effective torque transfer. The pivotability is controlled and limited, ensuring that torque transfer efficiency is not compromised during the cover rolling process.
Solution Approach 2:
The pivotable motor mount acts as an intermediary element between the arm and the roll shaft, mediating the transmission of torque while absorbing oscillating stresses. This intermediary connection allows for stress relief without significantly impeding the torque transfer needed for motorized cover rolling.
3Duration of action of stationary object
If the motor mount is made pivotable to reduce oscillating stresses, then component lifespan is extended, but device complexity increases
Solution Approach 1:
The motor mount incorporates pivotability to extend component lifespan by reducing oscillating stresses. While this adds some complexity, the pivotable design is integrated into the existing motor mount structure, minimizing the increase in device complexity while achieving the goal of extended system lifespan.
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 design reduces or eliminates destructive oscillating stresses, extending the lifespan of the cover system by maintaining the integrity of the arm-shaft connection and ensuring efficient torque transfer, thereby preventing premature deterioration and failure.
Implementation Method 1
using resilient materials to absorb oscillating forces
Data Source
AI summary
A motorized rolling cover system for covering the top of an open-top vehicle. The system includes a cover, a shaft, a motor assembly, an arm assembly and a motor mount that supports the motor assembly on the arm assembly. The motor mount is pivotally attached to the end of the arm assembly to provide pivotal movement of the mount in a single plane. The plane of pivotal movement is either the same as (i.e., parallel to) the plane defined by the arm and the shaft, or is perpendicular to the arm-shaft plane.