Conical Shaft Connection Assembly for High-Torque Transmission
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Solution Overview
Problem
Existing connection systems for securing a hollow shaft to a shaft face challenges in effectively transmitting high torque due to limitations in torque transmission efficiency and ease of assembly/disassembly.
Innovation Solution
A connection system comprising a shaft, a hollow shaft, a press ring, a first ring, a second ring, and a housing part, where the first ring is fitted onto the hollow shaft with conical regions and slits for enhanced deformability, and the press ring is used to transmit torque through two paths, ensuring secure fitting and disassembly, with the second ring having a female thread for additional support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single ring connection is used between hollow shaft and shaft, then the structure is simple, but the torque transmission capability is limited
Solution Approach 1:
The connection system divides the torque transmission function into two separate paths: one through the first ring directly connecting hollow shaft to shaft, and another through the press ring and second ring. This segmentation allows each ring to contribute to torque transmission independently, achieving higher overall torque capability while maintaining manageable structural complexity
Solution Approach 2:
The first ring is positioned inside the hollow shaft, while the second ring is nested on the first ring. The press ring connects both rings to the hollow shaft, creating a nested arrangement where multiple components work together in concentric layers. This nesting approach maximizes space utilization and enables dual torque paths without excessive structural complexity
2Manufacturing precision
If conical regions are used for fitting rings, then the centering precision is improved, but the assembly difficulty increases due to elastic deformation requirements
Solution Approach 1:
The first ring features conical regions at specific locations (inner conical region facing hollow shaft, outer conical region facing shaft) while other parts remain cylindrical. This localized conical geometry provides centering precision exactly where needed at the interfaces, while the rest of the ring maintains simple cylindrical form for easier manufacturing and assembly
Solution Approach 2:
The first ring incorporates slits that enable elastic deformation during assembly. These slits allow the ring to flex and adapt to the conical regions, facilitating easier assembly by permitting temporary deformation that locks into place once assembled, thereby reducing assembly difficulty while maintaining centering precision
3Productivity
If the first ring is positioned between hollow shaft and shaft, then torque transmission path is shortened, but the deformability requirement increases
Solution Approach 1:
The first ring is designed as a flexible element with slits that allow elastic deformation. This flexibility enables the ring to accommodate the compression forces generated when positioned between the hollow shaft and shaft, maintaining contact and torque transmission while absorbing the deformation requirements through its elastic properties
Solution Approach 2:
The first ring is segmented by incorporating slits, which divide the continuous ring structure into flexible segments. This segmentation allows localized deformation at the slit regions while maintaining overall ring integrity and torque transmission capability, reducing the deformability requirement for the entire ring structure
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 system enables efficient transmission of higher torque and facilitates easy assembly and disassembly by utilizing multiple torque transmission paths and elastic deformability, while preventing corrosion and ensuring precise centering.
Implementation Method 1
The first outer conical region of the first ring is positioned against the inner conical region of the hollow shaft
Implementation Method 2
The first outer conical region of the first ring is positioned against the inner conical region of the hollow shaft
Implementation Method 3
the press ring touches both a partial region of the radially outer surface of the hollow shaft and at least one partial region of the radially outer surface of the second ring
Implementation Method 4
the press ring touches both a partial region of the radially outer surface of the hollow shaft and at least one partial region of the radially outer surface of the second ring
Implementation Method 5
The first ring is, for example, arranged as a slit ring and is thus elastically deformable
Data Source
AI summary
A connection system includes a shaft, a hollow shaft, a press ring, a first ring fitted onto the hollow shaft, a second ring, a bearing, and a housing part. The hollow shaft is rotatably mounted via the bearing received in the housing part and has an inner conical region. The first ring has a first outer conical region and a second outer conical region. The first outer conical region is positioned against the inner conical region of the hollow shaft and/or at least a partial region of the first outer conical region is arranged radially between the shaft and the hollow shaft. The second ring encloses and/or surrounds the first ring. The press ring touches both a partial region of the radially outer surface of the hollow shaft and at least one partial region of the radially outer surface of the second ring and/or is mounted onto these partial regions.