Rolling Mill Gear Spindle Cooling to Reduce Coolant Scattering
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Solution Overview
Problem
The existing gear spindle devices in rolling mills face challenges in cooling, as the coolant can scatter and negatively impact nearby devices or the material being rolled.
Innovation Solution
A gear spindle device with a coolant supply unit positioned opposite to the seal member across the engagement portion, which supplies coolant towards the spindle outer cylinder in the formation region of the engagement portion, effectively reducing coolant scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If coolant is supplied to cool the gear spindle device, then the cooling effect is improved, but the coolant scatters and negatively impacts nearby devices or material
Solution Approach 1:
The coolant supply unit is positioned to supply coolant locally to specific high-heat-generation areas (engagement portion between inner and outer gears) rather than general cooling, and the supply direction is oriented toward the spindle outer cylinder to contain the coolant within the gear spindle device structure
Solution Approach 2:
The spindle outer cylinder acts as an intermediary structure that receives the supplied coolant and directs it through internal passages to the engagement portion, preventing direct scattering of coolant while achieving the cooling effect at the heat source
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 configuration minimizes the negative influence on nearby devices and the material being rolled by reducing coolant scattering, thereby enhancing the cooling efficiency of the gear spindle device.
Implementation Method 1
a coolant supply unit (18) disposed at an opposite side to the seal member (34) across the engagement portion (22) in an axial direction of the spindle outer cylinder (16), and supplying a coolant toward the spindle outer cylinder (16) in a formation region (A1) of the engagement portion (22)
Data Source
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AI summary
A gear spindle device for a rolling mill includes: a spindle outer cylinder having, at a first end side, an inner circumferential surface provided with an inner circumferential gear; a spindle inner cylinder having an outer circumferential surface provided with an outer circumferential gear which engages with the inner circumferential gear; a seal member disposed between the spindle outer cylinder and the spindle inner cylinder, for holding a lubricant oil at an engagement portion between the inner circumferential gear and the outer circumferential gear; and a coolant supply unit disposed at an opposite side to the seal member across the engagement portion in an axial direction of the spindle outer cylinder, for supplying a coolant toward the spindle outer cylinder in a formation region of the engagement portion where the engagement portion is formed.