Transmission Oil Capture Layout for High-Speed Gear Lubrication
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Solution Overview
Problem
Conventional transmission devices face challenges in effectively utilizing gear lubricating oil due to scattering when the input gear rotates at high speeds, leading to inefficient lubrication of the intended parts.
Innovation Solution
The transmission device incorporates a first oil capturing part with an oil inlet port located on a common tangent line of the input gear and counter gear, allowing efficient capture and supply of oil to lubrication target parts, even at high speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large amount of storage oil is placed in the auxiliary oil storage to ensure sufficient lubrication, then the lubrication coverage is improved, but the oil scatters excessively when the input gear rotates at high speeds, reducing lubrication effectiveness
Solution Approach 1:
The auxiliary oil storage is divided into multiple oil storage chambers (first, second, third chambers) that are spatially segmented. Each chamber stores oil for specific lubrication targets, preventing uncontrolled scattering while ensuring targeted delivery. The segmentation allows oil to be stored in controlled locations rather than a single large reservoir.
Solution Approach 2:
Oil guiding parts act as intermediaries between the oil storage chambers and the lubrication targets. These guiding parts (including oil guiding grooves and oil supply passages) channel the oil from storage to specific destinations, mediating the transfer process to prevent scattering while ensuring reliable delivery to bearing surfaces and gear mesh points.
2Reliability
If the oil inlet port is positioned to capture scattered oil effectively, then lubrication of the input gear is improved, but the oil may not reach other lubrication target parts such as bearings
Solution Approach 1:
The oil distribution system is segmented into multiple pathways: oil inlet ports for the input gear, oil supply passages for bearings, and direct gravity feed routes. This segmentation allows oil to be directed to different lubrication targets simultaneously, ensuring the input gear receives adequate lubrication while other parts also receive sufficient oil supply.
Solution Approach 2:
The auxiliary oil storage system serves multiple functions: it stores oil for the input gear, supplies oil to bearings, and provides lubrication for gear mesh points. The segmented storage chambers and guiding parts enable this multi-functionality, allowing a single oil storage system to serve multiple lubrication needs throughout the transmission device.
3Quantity of substance
If the auxiliary oil storage is designed to store large amounts of oil, then the storage capacity is improved, but the device complexity increases due to additional components needed to control oil distribution
Solution Approach 1:
The oil storage capacity is increased through segmentation into multiple chambers rather than adding complex distribution mechanisms. Each chamber is a simple enclosed space with basic guiding parts, avoiding the need for pumps, valves, or complex control systems while still providing large total storage capacity and controlled oil delivery.
Solution Approach 2:
The oil distribution system operates largely on self-service principles using gravity and centrifugal force from gear rotation to move oil from storage chambers to lubrication points. The guiding parts and oil supply passages are passively activated by the system's operation, eliminating the need for active control mechanisms and reducing overall device complexity.
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 design ensures that the oil scattered from the input gear is efficiently captured and utilized for lubrication, enhancing the effectiveness of the lubrication process and reducing waste.
Implementation Method 1
capable of capturing an oil scattered from the input gear
Data Source
AI summary
Provided is a transmission device in which an input gear and a counter gear configured to rotate around an axis parallel to a rotational axis of the input gear, the input gear and the counter gear meshing with each other and being arranged in a transmission case, the transmission case includes a first oil capturing part capable of capturing an oil scattered from the input gear, and the first oil capturing part includes an oil inlet port located on a front side in a forward rotation direction of the input gear on a common tangent line of pitch circles of the input gear and the counter gear, and the transmission case is provided with a lubrication target part to be lubricated with the oil captured by the first oil capturing part.