Multi-Start Damping Element Thread for Fast Vibration-Damped Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing damping elements and fastening devices lack efficiency in securely attaching a first body to a second body with effective vibration damping, requiring improved thread designs for rapid and secure engagement.
Innovation Solution
A damping element with a multi-start thread on its circumferential surface, allowing for rapid screwing into a recess in the first body, combined with a mating multi-start thread in the first body's recess, enabling secure vibration-damped fastening with reduced turning motion and enhanced locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional single-start thread is used on the damping element, then the thread engagement is simple to manufacture, but the assembly time is increased due to requiring more turning motion
Solution Approach 1:
The thread is segmented into multiple independent thread helices (e.g., two-start, three-start, or four-start thread) that run parallel to each other. This segmentation allows the damping element to engage with the recess in fewer rotations, as multiple thread portions engage simultaneously rather than sequentially, thereby reducing assembly time while maintaining manufacturability.
2Loss of time
If a multi-start thread is used on the damping element, then the assembly time is reduced due to fewer turning motions required, but the manufacturing precision requirements are increased
Solution Approach 1:
The thread design parameters are optimized by selecting appropriate numbers of thread starts (e.g., two-start, three-start, or four-start) and corresponding lead angles that balance assembly speed with manufacturing capability. The thread portions are designed with standardized pitch and diameter values that can be produced with conventional machining equipment while achieving the desired multi-start configuration, thus reducing assembly time without excessively increasing manufacturing precision requirements.
3Reliability
If the damping element uses a complex fastening mechanism to prevent detachment, then the security of attachment is improved, but the device complexity increases
Solution Approach 1:
The multi-start thread design itself provides the detachment prevention function without requiring additional fastening components. The interlocking nature of multiple thread helices creates inherent mechanical engagement that resists loosening and detachment, allowing the thread structure to serve both the primary function of connection and the secondary function of security, thereby maintaining reliability while avoiding increased 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
The multi-start thread design facilitates quick assembly and secure attachment of the damping element to the first body, providing effective vibration damping with reduced risk of detachment, suitable for applications like engine pumps and engine blocks.
Implementation Method 1
A damping element (1) has a multi-start thread on its circumferential surface (4). The multi-start nature of the thread means that the damping element can be readily and rapidly screwed into the recess in the first body, because on insertion only a comparatively short turning motion has to be performed
Implementation Method 2
a device for vibration-damped fastening of a first body to a second body, wherein the device has a damping element
Implementation Method 3
The preferred damping element comprises, particularly preferably consists of, a rubber-elastic material, preferably an elastomer
Data Source
AI summary
A damping element (1) has a multi-start thread on its circumferential surface (4). The damping element (1) can engage in a recess in a first body (12). To this end, the damping element (1) has a thread portion on its circumferential surface and the recess (13) in the first body (12) has in its inner lateral surface at least one mating thread portion which corresponds to the thread portion of the damping element (1). Through engagement of the thread in the mating thread, the damping element can be screwed together with the first body (12). By means of the thread, the damping element (1) can be fastened to the first body (12) and separated therefrom again with little effort. A fastening element (23) can fasten the damping element (1) to a second body in order to fasten the first (12) and the second bodies to one another in a vibration-damped manner.