Seaming Roll Lubricant Pump for Low-Speed Bearing Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing seaming devices face challenges in achieving sufficient lubricating and heat exhausting performance at low speeds or high loads due to insufficient lubricant flow rates caused by centrifugal force, leading to potential leakage and the need for high-pressure external lubricant supply.
Innovation Solution
A seaming device with an integrated lubricant pump mechanism, utilizing a screw member with spiral incisions to transfer lubricant between the lubricant path and bearing, ensuring a reliable flow rate and preventing leakage, even at low speeds or high loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If lubricant is supplied under pressure to increase flow rate, then lubricating performance and heat exhausting performance are improved, but lubricant leaks from sealed portion
Solution Approach 1:
The seaming roll uses its own rotational motion to drive the lubricant pump mechanism, eliminating the need for external high-pressure lubricant supply systems. The rotation-driven pump naturally delivers lubricant to the bearing at appropriate pressure and flow rate, preventing leakage while ensuring adequate lubrication.
Solution Approach 2:
A lubricant pump mechanism is introduced as an intermediary device between the lubricant supply and the bearing. This pump controls the lubricant flow, converting the rotational motion of the seaming roll into controlled lubricant delivery, thereby preventing direct high-pressure injection that would cause seal leakage.
2Quantity of substance
If lubricant flow rate is increased to ensure sufficient lubrication at low speed or high load, then lubricating performance is improved, but external high-pressure supply mechanism is required
Solution Approach 1:
The seaming roll's own rotation drives the lubricant pump mechanism, making the system self-sufficient. The pump is integrated into the seaming roll structure, using the roll's rotational energy to circulate lubricant without requiring external pumps or high-pressure supply systems.
Solution Approach 2:
The lubricant pump mechanism is merged with the seaming roll structure itself. The pump is positioned within the seaming roll, and the lubricant supply path is integrated into the roll's internal structure, eliminating separate external lubrication systems.
3Device complexity
If centrifugal force is used to circulate lubricant, then external lubricant supply mechanism is eliminated, but sufficient flow rate cannot be obtained at low speed or high load
Solution Approach 1:
The invention replaces the passive centrifugal force mechanism with an active rotation-driven pump mechanism. Instead of relying on centrifugal force generated by rotation, the pump actively draws lubricant from the lubricant path and delivers it to the bearing, ensuring consistent flow rate regardless of rotational speed or load conditions.
Solution Approach 2:
The lubricant pump acts as an intermediary that actively controls lubricant flow, replacing the passive centrifugal circulation system. The pump ensures adequate lubricant delivery to the bearing even at low speeds or high loads where centrifugal force would be insufficient.
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 device achieves sufficient lubricating and heat exhausting performance without high-pressure external lubricant supply, effectively preventing leakage and maintaining lubrication, even under varying operational conditions.
Implementation Method 1
a bottom wall that closes a bottom part of the lateral peripheral wall and faces an opening of the lubricant path of the seaming roll pin, and the seaming roll has, therein, a lubricant pump mechanism that transfers the lubricant between the lubricant path of the seaming roll pin and the bearing
Implementation Method 2
the lubricant is caused to flow only by a centrifugal force
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention has an object of providing a seaming device that does not need the supply of a lubricant at a high pressure from an outside, obtains a sufficient flow rate while suppressing the leakage of the lubricant, and obtains sufficient lubricating performance and heat exhausting performance even when the seaming device is used at a low speed or at a high load. Seaming rolls (451) and (452) have, therein, a lubricant pump mechanism that transfers a lubricating oil between a lubricant path (454) of a seaming roll pin (453) and a bearing (458).