Self-Lubricating Linear Drive Screw Assembly
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Solution Overview
Problem
Conventional linear driving devices face inefficiencies due to friction-induced energy loss and inconsistent lubrication, with existing lubrication methods often resulting in wastage or insufficient lubrication.
Innovation Solution
A self-lubricating assembly is integrated into the linear driving device, featuring an oil container and oil transmitting member that automatically supplies lubricating oil to the guideway and screw as the slide block moves, ensuring consistent lubrication and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lubrication methods (dispersing or centralized) are used to supply lubricating oil to the linear driving device, then the device can be lubricated, but the lubricating oil is likely to drip or be overly supplied causing waste, or insufficiently supplied causing inadequate lubrication
Solution Approach 1:
The linear driving device incorporates an integrated lubrication system where the screw itself serves as the lubrication delivery mechanism. The screw thread structure automatically distributes lubricating oil to the guideway and slide block contact surfaces during normal operation, eliminating the need for separate lubrication supply systems and preventing oil waste or insufficient lubrication.
Solution Approach 2:
The screw component performs dual functions: it provides the mechanical driving function by converting rotational motion to linear motion, and simultaneously serves as the lubrication delivery system. The screw thread structure acts as both the drive mechanism and the oil distribution channel, integrating multiple functions into a single component.
2Ease of operation
If manual lubrication with an oil gun is used, then lubricating oil can be supplied to the linear driving device, but it requires regular manual intervention and may result in insufficient or excessive lubrication
Solution Approach 1:
The lubrication system is designed to be self-servicing, where the linear driving device automatically lubricates itself during operation. The screw structure continuously distributes lubricating oil to contact surfaces without requiring manual intervention, eliminating maintenance time and improving operational convenience.
3Extent of automation
If centralized lubrication through pipeline is used, then automatic lubrication can be achieved, but the system becomes complex and may still result in oil dripping or insufficient supply
Solution Approach 1:
The invention extracts the lubrication function from a separate centralized lubrication system and integrates it directly into the screw component itself. This eliminates the need for external pipelines, reservoirs, and control mechanisms, achieving automatic lubrication while significantly reducing system complexity.
Solution Approach 2:
The lubrication system merges the screw component with the oil distribution function. The screw thread structure is designed to simultaneously perform mechanical driving and lubrication delivery, combining what were previously separate functions into a single integrated component.
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 self-lubricating assembly prolongs the lubrication time of the linear driving device, enhances energy transmission efficiency, and maintains a clean environment by automatically applying lubricant without dripping, thus addressing the inefficiencies of conventional lubrication methods.
Implementation Method 1
an oil transmitting member is disposed around the inner periphery of the storing tank, so it can absorb the lubricating oil in every corner of the storing tank
Data Source
AI summary
A self-lubricating assembly for a linear driving device comprises an oil applying subassembly, an oil transmitting subassembly and an oil container. The oil transmitting subassembly transmits lubricating oil from the oil container to the oil applying subassembly, and the oil applying subassembly is driven by the linear driving device to perform lubricating action automatically. The oil container is provided for storing lubricating oil to prolong lubricating time of the linear driving device.