Gear Transmission Lubrication Boxes for Bottom Component Oil Delivery
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Solution Overview
Problem
Existing gear transmission units face challenges in ensuring proper and controllable lubrication of all components, particularly those located at the bottom part of the transmission unit, as current forced lubrication systems do not effectively reach and lubricate these areas consistently.
Innovation Solution
The integration of lubricant distribution boxes with hollow bodies connected to the supporting casing, featuring an inner distribution chamber and multiple outlets for supplying a forced flow of lubricant under pressure to various components, allows for direct and controlled lubrication of all internal components, including those in the lowermost parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If forced lubrication is provided only for uppermost components to reduce channel network complexity, then device complexity is reduced, but lubrication reliability of bottom components deteriorates
Solution Approach 1:
The transmission casing is divided into multiple lubrication zones with separate channel outlets positioned at different heights. Upper outlets supply lubricant to upper components while lower outlets supply to lower components, allowing independent lubrication control for each zone and ensuring reliable lubrication throughout the entire transmission unit.
Solution Approach 2:
The lubrication system transitions from a single-plane (horizontal) distribution approach to a multi-level (vertical) distribution system. Channel outlets are arranged at different vertical positions within the casing, creating a three-dimensional lubrication network that effectively reaches components at various heights, including the bottom components that were previously difficult to lubricate.
2Device complexity
If gravity-based lubrication is used for bottom components, then device complexity is reduced, but lubrication control precision deteriorates
Solution Approach 1:
A lubricant distribution chamber acts as an intermediary component between the pump and the bottom components. This chamber receives pressurized lubricant from the pump and redistributes it through controlled outlets to specific lower components, ensuring precise and controllable lubrication delivery rather than relying on uncontrolled gravity flow.
Solution Approach 2:
The system uses a pump-driven hydraulic approach to deliver lubricant under pressure to bottom components through dedicated channels and distribution chambers. This pressurized fluid delivery system provides active control over lubricant flow to lower components, replacing passive gravity-based delivery and enabling precise lubrication control throughout the transmission unit.
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
This solution simplifies and enhances the lubrication process, ensuring all components receive a proper and controllable lubrication flow, reducing complexity and operational costs while maintaining transmission efficiency.
Implementation Method 1
a forced lubrication system for lubricating said rolling bearings and/or further internal components of the transmission unit, said forced lubrication system including: a supply pump for supplying lubricant, and a plurality of channels formed within walls of said supporting casing of the transmission unit, for bringing the lubricant up to the internal components to be lubricated
Implementation Method 2
said hollow body defines an inner lubricant distribution chamber and has one inlet connected to said channel outlet and two or more outlets connected to further conduits or channels or chambers for supplying a flow of lubricant under pressure in parallel to various components to be lubricated inside the supporting casing
Implementation Method 3
the components located in the bottom part are reached by the lubricant due to gravity, after that the lubricant has wet the components in the upper part
Data Source
AI summary
A gear transmission unit, particularly for a motor-vehicle, is provided with a forced lubrication system for lubricating rolling bearings and/or further inner components of the transmission unit. The unit is provided with one or more accessory elements in the form of lubricant distribution boxes. Each distribution box has a hollow body rigidly connected to the casing of the unit adjacent to a respective channel outlet which supplies a flow of lubricant under pressure. The hollow body defines an inner lubricant distribution chamber and has an inlet connected to the channel outlet and two or more outlets connected to further conduits for channels or chambers, for supplying the flow of lubricant under pressure in parallel to various components to be lubricated inside the transmission casing.