Clutch Winch Structure for Drive Component Overload Protection
Solution Overview
Problem
Existing clutch winch structures lack protection for drive components, particularly in heavy-load applications like drone cargo delivery, where excessive instantaneous forces can damage motors and other components.
Innovation Solution
A clutch winch structure with a transmission mechanism, servo motor, sliding rod, spring, and polyurethane winch and friction wheel that allows separation and re-engagement to protect the drive components from excessive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the winch is directly connected to the motor without separation mechanism, then the structure is simple, but the motor and drive components are vulnerable to damage from excessive instantaneous forces
Solution Approach 1:
The winch system is segmented into two independent parts: a motor-driven friction wheel and a winch drum, connected through a clutch mechanism. This segmentation allows the winch to be disconnected from the motor during overload conditions, protecting the motor while maintaining structural functionality. The clutch assembly acts as a separate protective component that can engage or disengage the connection between the friction wheel and winch drum.
Solution Approach 2:
A clutch mechanism serves as an intermediary component between the motor-driven friction wheel and the winch drum. This intermediary can selectively connect or disconnect the power transmission path, allowing the system to protect the motor from excessive forces while maintaining the ability to transmit power when needed. The clutch assembly includes components such as a clutch plate, spring, and actuating mechanism that mediate the connection between the two main elements.
2Reliability
If the friction wheel continuously contacts the winch, then power transmission is continuous, but the motor cannot be protected from excessive instantaneous forces during cargo delivery
Solution Approach 1:
The clutch mechanism incorporates dynamic elements including a spring-loaded clutch plate that can automatically engage or disengage based on operational conditions. The spring provides a restoring force that maintains engagement during normal operation but allows disengagement when excessive force is applied. This dynamic design enables automatic protection without complex control systems, as the mechanical elements respond naturally to load conditions.
Solution Approach 2:
The clutch mechanism is designed to automatically respond to excessive force conditions without requiring external control. When the winch encounters excessive instantaneous force during cargo delivery, the clutch plate automatically disengages from the friction wheel, protecting the motor. The spring mechanism provides the restoring force needed to re-engage the clutch after the overload condition passes, making the system self-regulating and eliminating the need for additional sensors or control systems.
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 structure effectively protects drive components by separating them from the line-releasing mechanism during heavy loads, preventing damage and ensuring safety and high integration.
Implementation Method 1
a spring, wherein the spring is sleeved on the sliding rod to provide a restoring force for the winch
Implementation Method 2
a friction wheel, wherein the friction wheel is connected to the bottom plate, and the friction wheel is configured to be able to abut against or disengage from the winch
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to the field of protecting driving devices, and in particular to a clutch winch structure for protecting driving devices, comprising: a bottom plate; a transmission mechanism, the transmission mechanism being fixedly connected to the bottom plate; a winch, the winch being connected to the transmission mechanism; a friction wheel, the friction wheel being connected to the bottom plate, the friction wheel being configured to be able to abut against or disengage from the winch.