Screw Drive Nut Body Coolant Duct Design
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Solution Overview
Problem
Screw drives, particularly planetary screw drives, face inefficiencies in heat dissipation due to high rotational speeds and load-bearing capacities, often requiring cooling measures to prevent overheating, which can be costly and complex to implement.
Innovation Solution
The integration of existing fastening holes in the nut body as coolant ducts, along with an interior space between the nut body and spindle, forms a simple and compact coolant path for heat dissipation, eliminating the need for additional cooling systems and allowing direct heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If additional cooling measures are provided to dissipate heat, then heat dissipation capability is improved, but device complexity and equipment outlay increase
Solution Approach 1:
The fastening holes in the nut body are designed to serve dual purposes: mechanically fastening the nut to the support structure and simultaneously functioning as coolant ducts for heat dissipation. This multi-functionality eliminates the need for separate cooling infrastructure, reducing device complexity while maintaining effective heat dissipation capability.
Solution Approach 2:
The cooling system utilizes the existing structural elements of the nut body (fastening holes and interior spaces) to provide self-cooling functionality. The nut structure itself serves as the cooling mechanism, eliminating dependency on external cooling systems and reducing overall device complexity.
2Temperature
If cooling ducts are integrated into the nut body, then heat dissipation is improved, but manufacturing complexity increases
Solution Approach 1:
The fastening holes are designed to serve dual purposes: mechanically fastening the nut to the support structure and simultaneously functioning as coolant ducts for heat dissipation. This multi-functionality eliminates the need for separate cooling infrastructure, reducing device complexity while maintaining effective heat dissipation capability.
Solution Approach 2:
The cooling system utilizes the existing structural elements of the nut body (fastening holes and interior spaces) to provide self-cooling functionality. The nut structure itself serves as the cooling mechanism, eliminating dependency on external cooling systems and reducing overall device complexity.
3Temperature
If the nut design is modified to include cooling features, then cooling effectiveness is improved, but assembly complexity increases
Solution Approach 1:
The fastening holes are designed to serve dual purposes: mechanically fastening the nut to the support structure and simultaneously functioning as coolant ducts for heat dissipation. This multi-functionality eliminates the need for separate cooling infrastructure, reducing device complexity while maintaining effective heat dissipation capability.
Solution Approach 2:
The cooling system utilizes the existing structural elements of the nut body (fastening holes and interior spaces) to provide self-cooling functionality. The nut structure itself serves as the cooling mechanism, eliminating dependency on external cooling systems 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 solution effectively dissipates frictional heat through a straightforward cooling mechanism, reducing assembly complexity and enabling the screw drive to operate within safe temperature limits without the need for additional cooling infrastructure, while maintaining compactness and accessibility.
Implementation Method 1
there is direct heat transfer between the coolant and the nut
Implementation Method 2
circulate liquid or gaseous coolant within a nut
Data Source
AI summary
A screw drive includes a spindle and a nut with a nut body. The nut body has at least one hole for a fastening member that is configured to enable the screw drive to be fastened on a higher-level subassembly or on a higher-level construction component. The at least one hole is further configured as a coolant duct of a coolant path. In one embodiment, an interior space between the nut body and the spindle is configured as a coolant duct.