Lubricating Grease Composition for Chuck Clamping Devices
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Solution Overview
Problem
Current lubricating greases for article clamping devices fail to provide excellent lubricating properties while maintaining strong adhesion to metal parts and resisting chemical and physical interactions with cutting fluids, leading to reduced clamping force and shorter lubrication intervals.
Innovation Solution
A lubricating grease composition comprising 15-65% solid lubricants, 15-84% base oils, 0.5-20% adhesion improvers, 0.5-15% waxes, and 0-30% thickeners, with specific components like calcium carbonate and polyisobutylene, which enhances chemical and physical resistance and maintains friction control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lubricating greases are used in article clamping devices, then lubrication is provided, but adhesion to metal parts is insufficient and resistance to cutting fluids is poor
Solution Approach 1:
The patent employs a composite grease formulation combining multiple thickening agents (calcium sulfate, calcium carbonate, calcium hydroxide, magnesium hydroxide, zinc oxide) with specific base oils and adhesion promoters. This composite approach creates a lubricant that simultaneously achieves strong metal surface adhesion and resistance to cutting fluid washout, resolving the contradiction between basic lubrication function and environmental resistance.
Solution Approach 2:
The invention modifies key grease parameters including thickener composition (using inorganic compounds like calcium sulfate and zinc oxide), base oil selection (synthetic or natural oils with specific viscosity ranges), and additive packages (adhesion promoters and cutting fluid resistance agents). These parameter changes enable the grease to maintain film integrity under cutting fluid exposure while preserving lubrication properties.
2Force
If lubricating grease is applied to clamping devices, then friction is reduced, but adhesion to metal surfaces deteriorates over time
Solution Approach 1:
The patent introduces adhesion promoters and specific thickening agents that act as intermediaries between the grease formulation and metal surfaces. These components create strong chemical or physical bonding to metal surfaces, ensuring the lubricant film remains firmly attached during clamping operations and resists being washed away by cutting fluids or centrifugal forces.
Solution Approach 2:
The invention adjusts the grease consistency and composition parameters by incorporating specific ratios of inorganic thickeners (calcium sulfate 5-30%, zinc oxide 2-15%, magnesium hydroxide 3-20%) and adhesion promoters. These parameter modifications enhance both the friction reduction capability and the long-term adhesion stability on metal surfaces.
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 composition maintains consistent clamping forces over multiple cycles, resists cutting fluids, and extends the lubrication interval without harming the environment or the clamping device, ensuring prolonged device endurance.
Implementation Method 1
frictional engagement of actuation members to cause engaging members to grip a tool held in the device. Hence, frictional interfaces are operationally unavoidable
Implementation Method 2
remaining strongly adhered to metal parts in the clamping mechanism of the device
Implementation Method 3
showing enhanced chemical and physical resistance to fluids such as cutting fluids with which they come into contact
Implementation Method 4
showing enhanced chemical and physical resistance to fluids such as cutting fluids with which they come into contact
Data Source
AI summary
A lubricating grease composition, and more specifically, to a lubricating grease composition which, when used with an article clamping device, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in the clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids with which they come into contact.