Planetary Gear Nozzle Body for Targeted Oil Lubrication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing planetary gear systems face inefficiencies in lubricating gear meshes, particularly in areas where traditional oil sump lubrication methods are inadequate, leading to potential wear and tear without targeted and effective lubrication.
Innovation Solution
The introduction of a nozzle body with a connecting element, nozzle part, and nozzle component, which are aligned to provide targeted oil lubrication to gear meshes, allowing for dry sump lubrication and eliminating the need for separate lubrication pumps and feed lines, ensuring effective lubrication of both planet gear and sun gear meshes with a single nozzle body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional oil sump lubrication is used, then the system is simple in structure, but the lubrication effectiveness in gear mesh areas is insufficient
Solution Approach 1:
A nozzle body is inserted into the oil feed channel to act as an intermediary device. The nozzle body includes a connecting element with nozzle parts that direct oil precisely to the gear mesh areas. This intermediary component transforms the general oil flow from the channel into targeted lubrication streams, improving lubrication effectiveness without requiring a completely new lubrication system
Solution Approach 2:
The nozzle body provides localized oil delivery exactly where the gear meshes occur. The nozzle parts are positioned and oriented to deliver oil specifically to the meshing areas of the planet gears and sun gear, rather than relying on general oil sump lubrication. This local quality approach ensures effective lubrication at the critical contact points
2Manufacturing precision
If separate lubrication pumps and feed lines are added for targeted gear mesh lubrication, then lubrication precision is improved, but device complexity and cost increase
Solution Approach 1:
The nozzle body serves as an intermediary device inserted into the existing oil feed channel. It transforms the existing lubrication system into a precision lubrication system by directing oil flow through its nozzle parts, eliminating the need for separate pumps and feed lines while achieving targeted lubrication
Solution Approach 2:
The nozzle body performs multiple functions: it acts as a flow distributor, a positioning element, and a lubrication delivery system. By integrating these functions into a single component that fits into the existing channel, the system achieves precision lubrication without adding separate lubrication subsystems
3Reliability
If multiple separate nozzles are used for different gear meshes, then each mesh receives targeted lubrication, but device complexity increases
Solution Approach 1:
Multiple nozzle parts are integrated into a single nozzle body structure. The connecting element holds multiple nozzle parts that can lubricate different gear meshes simultaneously, combining what would otherwise be separate nozzle assemblies into one unified component
Solution Approach 2:
The nozzle body is designed as a multi-functional component that can serve multiple lubrication points. The connecting element with multiple nozzle parts allows a single component to provide targeted lubrication to different gear meshes, eliminating the need for multiple separate nozzle assemblies
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 enhances lubrication efficiency by providing precise oil delivery to gear meshes, reducing wear and tear, and offering a cost-effective alternative to traditional lubrication systems, ensuring even lubrication across multiple gear meshes.
Implementation Method 1
Pressure oil lubrication of the cogs of a planetary gear
Implementation Method 2
oil for lubricating the respective gear mesh exits
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The planetary gear comprises a planetary carrier connected with a rotor, which has planetary side-pieces connected with each other by bars (4). Multiple planetary gears (2) are provided, which placed in planetary gear bearings interacting with the planetary carrier. The planetary gears are engaged on one hand with a sun gear (3), and on the other hand with an internal gear (1). A channel interconnected with an oil guide channel is inserted in each bar.