Double Helical Splined Shaft for Vibratory Compactor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vibratory compactor systems face challenges in efficiently transferring vibratory forces to compact materials due to limitations in shaft connections, which can restrict the effectiveness of compaction and occupy valuable space within the compactor machine.
Innovation Solution
A vibratory system utilizing an internal double helical splined shaft configuration, comprising an outer and inner eccentric, motor, key shaft, input shaft, and output shafts, allows for selective linear and rotational movements via a helically splined connection, enabling efficient vibration transfer and offsetting weighted portions to optimize compaction force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional shaft connections are used in vibratory compactor systems, then the structure is simpler, but the compaction efficiency is reduced due to restricted vibration transfer and space occupation
Solution Approach 1:
The patent implements nesting by placing the inner eccentric assembly within the outer eccentric assembly, with multiple shafts (input shaft, output shaft, key shaft) nested concentrically. The inner eccentric is positioned within the outer eccentric, allowing compact arrangement of components while maintaining independent rotational capability. This nested configuration maximizes space utilization and enables efficient vibration transfer without occupying excessive space within the compactor machine.
Solution Approach 2:
The patent employs dynamic elements through the use of splined connections that allow relative axial movement between shafts while maintaining rotational coupling. The key shaft can move axially within the input shaft through the splined interface, enabling selective engagement and disengagement of vibration transfer. This dynamic capability allows the system to adjust vibration levels and optimize compaction efficiency based on operating conditions.
2Volume of moving object
If space within the compactor machine is optimized, then the machine size is reduced, but the shaft connection system may become overly complex
Solution Approach 1:
The patent implements nesting by placing the inner eccentric assembly within the outer eccentric assembly, with multiple shafts (input shaft, output shaft, key shaft) nested concentrically. The inner eccentric is positioned within the outer eccentric, allowing compact arrangement of components while maintaining independent rotational capability. This nested configuration maximizes space utilization and enables efficient vibration transfer without occupying excessive space within the compactor machine.
Solution Approach 2:
The patent applies multi-functionality through the splined shaft connection system that simultaneously performs multiple functions: torque transmission, axial movement control, and vibration isolation. The same splined interface that allows axial adjustment also maintains rotational coupling and torque transfer. This multi-functional design reduces the need for separate components, thereby optimizing space while avoiding excessive complexity.
3Force
If vibration transfer is maximized for effective compaction, then compaction force is improved, but space requirements increase
Solution Approach 1:
The patent implements nesting by placing the inner eccentric assembly within the outer eccentric assembly, with multiple shafts (input shaft, output shaft, key shaft) nested concentrically. The inner eccentric is positioned within the outer eccentric, allowing compact arrangement of components while maintaining independent rotational capability. This nested configuration maximizes space utilization and enables efficient vibration transfer without occupying excessive space within the compactor machine.
Solution Approach 2:
The patent combines the inner and outer eccentric assemblies into a single integrated vibratory system, merging their compaction forces. The weighted portions of both eccentrics are positioned to create coordinated vibration patterns that amplify compaction effectiveness. By merging these components and their functions, the system achieves enhanced compaction force within a compact space configuration.
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 enhances the compaction efficiency by allowing adjustable vibration levels and alleviates space constraints within the compactor machine, making it suitable for both larger and smaller machines by optimizing the placement of linear actuators and motor components.
Implementation Method 1
The input shaft can have an external helically splined portion configured to be complimentary to and positioned at least partially within the first internal helically splined portion of the key shaft
Implementation Method 2
The vibratory system can optionally comprise: an outer eccentric, an inner eccentric, a motor, a key shaft, an input shaft, a first output shaft and a second output shaft
Data Source
AI summary
A vibratory system for a compactor machine, the vibratory system optionally including a key shaft, an input shaft, a first output shaft and a second output shaft. The key shaft can have a first internal helically splined portion and a second internal helically splined portion. The first internal helically splined portion can be oppositely splined with respect to the second internal helically splined portion and arranged axially of the second internal helically splined portion. The input shaft can be configured with an external helically splined portion configured to be complimentary to the first internal helically splined portion of the key shaft. The first output shaft can be configured couple to the input shaft for rotation therewith. The second output shaft can have an external helically splined portion configured to be complimentary to the second internal helically splined portion of the key shaft.