Horizontal-Pull Clutch Sealing for Winch Contamination
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Solution Overview
Problem
Conventional power winch clutch devices are prone to water, dust, and foreign matter ingress, leading to damage and potential operator injury due to exposed holes and gaps, and can accidentally clamp foreign objects during operation.
Innovation Solution
A power winch horizontal-pull clutch device with a sealed assembly design featuring a deceleration device with a connecting slot and internal thread, an external sleeve, control handle, cap, clutch lever, elastic element, binding ring, wedge-shaped member, and positioning nut, which includes an internal seat with a cylindrical structure and O-ring for sealing, preventing foreign matter entry and ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the clutch device uses exposed holes and gaps for operation, then the ease of operation is improved, but water, dust, and foreign matter can enter the device causing damage
Solution Approach 1:
The patent employs a rubber seal ring that flexibly seals around the clutch lever shaft, creating a protective barrier that prevents water, dust, and foreign matter from entering the clutch device while allowing the shaft to move for clutch operation. This flexible sealing mechanism maintains both protection and operational ease.
2Ease of operation
If the clutch device has exposed holes and gaps, then the ease of operation is improved, but operator injury from clamping foreign matters occurs
Solution Approach 1:
The rubber seal ring creates a smooth, flexible barrier that eliminates sharp edges and exposed mechanical interfaces where foreign matters could be clamped. The flexible material conforms to movements without creating pinching hazards, protecting the operator while maintaining clutch functionality.
3Device complexity
If conventional clutch devices are used, then the device complexity is reduced, but reliability is compromised due to exposure to harmful factors
Solution Approach 1:
The rubber seal ring provides a simple yet effective sealing solution that significantly enhances reliability by preventing harmful factors from entering the clutch device. This single flexible component delivers substantial protection without adding complex sealing systems.
4Object-affected harmful factors
If the clutch device uses a sealed design with rubber seal ring, then protection from harmful factors is improved, but the device complexity increases
Solution Approach 1:
The rubber seal ring implements sealing in the most straightforward manner possible - a single continuous flexible element that surrounds the moving shaft. This approach achieves maximum protection with minimum added complexity, as the seal integrates seamlessly with the existing clutch structure.
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 device effectively prevents water, dust, and foreign matter from entering, reducing the risk of damage and operator injury while maintaining smooth operation without exposing gaps, ensuring reliable and secure clutch engagement and disengagement.
Implementation Method 1
an elastic element, wherein the elastic element is sheathed on the polygonal column
Data Source
AI summary
A power winch horizontal-pull clutch device provides dynamic forces from a power source and uses a deceleration device to retard the force transmission to a cable pulley for releasing and rewinding a steel cable on the cable pulley. A connecting slot is formed on a casing of the deceleration device. The deceleration device includes an outer ring body and at least one insert slot formed on an external surface. The power winch includes a clutch device for selectively fixing the connecting slot to the insert slot to transmit the dynamic force from the deceleration device to the cable pulley. The clutch device is a sealed assembly and a control handle is provided for making a horizontal movement to achieve the clutching effect and prevent water, dust or other foreign matters from entering into the clutch device, damaging components, causing failure or malfunction, or clamping an operator's hand or foreign matters.