Winch Brake Sleeve and Elastic Ring for Low-Noise Braking
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Solution Overview
Problem
Existing winch brakes generate excessive noise, consume high energy, and provide a poor user experience due to friction and manufacturing errors.
Innovation Solution
A brake device for a winch comprising a brake sleeve, an elastic ring, and a torsion spring, where the elastic ring fits over the brake sleeve and abuts with the rope drum, allowing the brake sleeve and rope drum to float relative to each other, reducing friction and noise, and incorporating a braking assembly to control the torsion spring's movement between extended and retracted positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional brake mechanisms are used in winch, then braking function is achieved, but noise is large and energy consumption is high
Solution Approach 1:
The patent extracts and eliminates the traditional brake mechanism from the winch system. Instead of using conventional friction-based brakes, the invention uses the elastic ring's natural elasticity and the rope drum's rotation to achieve braking function, thereby removing the source of noise and high energy consumption associated with traditional brakes
Solution Approach 2:
The patent converts the harmful friction and contact between brake components into beneficial elastic deformation of the elastic ring. The elastic ring deforms elastically during braking, storing and releasing energy without the harmful friction and noise generated by traditional brake mechanisms
2Object-affected harmful factors
If brake components are fixed rigidly, then structural stability is achieved, but friction and manufacturing errors increase noise and vibration
Solution Approach 1:
The patent replaces rigid fixed connections with dynamic elastic connections. The elastic ring provides a dynamic, flexible connection between the brake sleeve and rope drum, allowing the system to adapt to manufacturing tolerances and reduce vibration while maintaining operational reliability through the ring's elastic properties
3Object-affected harmful factors
If elastic ring is fitted over brake sleeve, then friction and noise are reduced, but device complexity increases
Solution Approach 1:
The patent uses an elastic ring (flexible element) fitted over the brake sleeve to create a flexible connection that reduces friction and noise. This flexible shell approach simplifies the overall structure by eliminating complex brake mechanisms while achieving the desired friction reduction
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 effectively suppresses noise and vibration, reduces energy consumption, and enhances the operational reliability and user experience by minimizing friction and manufacturing errors.
Implementation Method 1
The torsion spring is fitted over the braking assembly, and the brake sleeve is fitted over the torsion spring. The braking assembly is configured to drive the torsion spring to move between an extended position and a retracted position
Implementation Method 2
The elastic ring is fitted over the brake sleeve and configured to abut with an inner wall of the rope drum, allowing the brake sleeve and rope drum to float relative to each other, reducing friction and noise
Data Source
AI summary
A brake device for a winch and a winch are provided. The winch includes a rope drum, and the brake device includes a brake sleeve, an elastic ring, a torsion spring and a braking assembly. The torsion spring is fitted over the braking assembly, and the brake sleeve is fitted over the torsion spring. The braking assembly is configured to drive the torsion spring to move between an extended position and a retracted position, so as to lock and release the brake sleeve. The elastic ring is fitted over the brake sleeve and configured to abut with an inner wall of the rope drum.