Pump Body Oil Guide Channel for Inner Ring Flange Lubrication
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Solution Overview
Problem
In sliding vane compressors, excessive friction between the inner ring and flange structure leads to increased power consumption and reliability issues, particularly at higher rotation speeds, due to the introduction of a new friction pair when replacing the cylinder structure with a rolling bearing.
Innovation Solution
The implementation of an oil guide channel within the pump body, which directs lubricating oil between the end face of the inner ring and the contact face of the flange structure, reducing friction and enhancing lubrication, includes multiple channels and an annular groove to ensure even distribution and adequate lubrication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a rolling bearing is introduced to replace the fixed cylinder structure, then the relative speed between the sliding vane head and the cylinder wall is reduced, but a new friction pair is created between the inner ring end face and the flange structure
Solution Approach 1:
The patent introduces lubricating oil as an intermediary substance between the inner ring end face and the flange structure. The oil guide channel delivers lubricating oil to the contact interface, forming a lubricating film that reduces direct metal-to-metal contact and friction between these surfaces.
2Productivity
If the rotation speed is increased to improve productivity, then the compressor output increases, but the friction between the inner ring and flange structure becomes excessive
Solution Approach 1:
The lubricating oil acts as a mediator that allows the system to operate at higher rotation speeds without experiencing excessive friction. The oil guide channel ensures continuous supply of lubricating oil to the contact interface, enabling high-speed operation while maintaining acceptable friction levels.
Solution Approach 2:
The patent changes the physical state and properties of the contact interface by introducing lubricating oil. This transforms the dry friction condition into a lubricated condition, fundamentally changing the friction characteristics and enabling higher operating speeds.
3Use of energy by moving object
If lubricating oil is introduced to reduce friction between the inner ring and flange structure, then power consumption is reduced, but the system complexity increases due to the oil guide channel
Solution Approach 1:
The oil guide channel serves multiple functions: it guides lubricating oil to the friction interface, structures the oil flow for effective lubrication, and integrates into the existing bearing assembly. This multi-functionality justifies the added structural complexity by delivering significant friction reduction and energy savings.
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 effectively reduces friction and wear between the inner ring and flange structure, improving the reliability and reducing power consumption of the compressor by ensuring consistent lubrication across the contact surfaces.
Implementation Method 1
an outlet of the oil guide channel is positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure
Data Source
AI summary
The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.