Axial Clutch Electric Winch for Low-Resistance Rope Release
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Solution Overview
Problem
Existing electric winches with axial electric clutches face difficulties in easily releasing the traction rope and re-engaging the clutch mechanism, leading to increased resistance and reduced operational stability.
Innovation Solution
The electric winch design includes a first motor, a bracket, a winch drum, and a planetary gear reducer, with a connecting shaft that allows for axial slidable muff-coupling between the winch drum and the output-side planetary gear set, enabling easy rope release and clutch re-engagement through an electric device and controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the whole planetary gear reducer is driven by the winch drum to rotate during rope release, then the rope can be released, but greater resistance is generated
Solution Approach 1:
The patent extracts the transmission connection between the winch drum and planetary gear reducer during the rope release process. By using a clutch mechanism that disconnects the winch drum from the planetary gear reducer, the winch drum can rotate freely without driving the entire planetary gear reducer, thereby reducing resistance and making rope release easier.
Solution Approach 2:
The patent implements a dynamic transmission system where the connection between the winch drum and planetary gear reducer can be switched on and off. The clutch mechanism allows the transmission path to be dynamically adjusted: connected during normal operation and disconnected during rope release, enabling the system to adapt to different operational states and reduce unnecessary resistance.
2Ease of operation
If the second transmission connecting section and second transmission hole are not aligned, then alignment is required for insertion, but this reduces operational stability and makes re-engagement difficult
Solution Approach 1:
The patent employs a clutch mechanism that preliminarily positions the transmission connecting section and transmission hole in alignment before the actual engagement action. The clutch assembly includes positioning structures that ensure the second transmission connecting section and second transmission hole are pre-aligned, eliminating the need for difficult manual alignment and improving both ease of operation and reliability during re-engagement.
3Reliability
If axial alignment is required for clutch engagement, then high axial machining accuracy and matching accuracy are needed, but this increases manufacturing complexity
Solution Approach 1:
The patent introduces a clutch mechanism as an intermediary component between the winch drum and planetary gear reducer. This clutch assembly includes built-in positioning and alignment features that automatically ensure accurate axial alignment during engagement. By incorporating alignment structures within the clutch mechanism itself, the patent reduces the required machining accuracy of the main transmission components while maintaining reliable engagement.
4Manufacturing precision
If the transmission shaft is made long to achieve axial alignment, then alignment may be improved, but this is not conducive to production and manufacturing
Solution Approach 1:
The patent segments the transmission system by introducing a separate clutch mechanism with its own transmission shaft, rather than using a single long transmission shaft. This segmentation allows the clutch assembly to be manufactured independently with standard-length components, improving ease of manufacture while the clutch's internal positioning structures ensure the required axial alignment precision for engagement.
Data Source
AI summary
An electric winch for axial electric clutch comprises a first motor, a bracket, a winch drum and a planetary gear reducer; wherein, the first motor and the planetary gear reducer are respectively installed at two opposite ends of the bracket, and the winch drum is rotatably arranged between the first motor and the planetary gear reducer; the planetary gear reducer comprises an input-side planetary gear set and an output-side planetary gear set for driving the winch drum to rotate, and a transmission shaft passing through the winch drum is arranged between the first motor and the planetary gear reducer.