Vibration Device Clamping Jaws Resilient Suspension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pile driving installations experience unpredictable vibration behavior and reduced lifespan due to intense vibrations transmitted through hinge connections between the frame and clamping jaws, leading to uncontrollable flexibility and fatigue.
Innovation Solution
Rigid connection of vibrators to clamping jaws with resilient support to the frame, using suspension members to ensure defined and resistant connections, and adaptable clamping shells for various pile shapes and dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hinge connections are used between the frame and clamping jaws, then the clamping jaws can be pivotably connected to allow opening and closing, but the connections are subjected to intense vibrations and high loads reducing their useful life
Solution Approach 1:
The connection system is segmented into multiple functional elements: resilient suspension members provide vibration isolation, while separate pulling means handle axial forces. This segmentation allows each component to be optimized for its specific function, preventing the hinge connections from bearing both vibration and pulling loads simultaneously.
Solution Approach 2:
Resilient suspension members are introduced as intermediary elements between the frame and clamping jaws. These members act as mediators that absorb and isolate vibrations, protecting the hinge connections from intense vibrational loads while still allowing the necessary pivoting motion for clamping jaw operation.
2Ease of operation
If hinge connections are used between the frame and clamping jaws, then the clamping jaws can be pivotably connected, but the connections exhibit play or flexibility influencing vibration behavior in an uncontrollable way
Solution Approach 1:
Resilient suspension members serve as intermediary elements that filter and control vibrations. They provide a defined, controllable connection that eliminates the unpredictable play and flexibility inherent in traditional hinge connections, while still permitting the necessary angular movement for clamping jaw operation.
Solution Approach 2:
The connection characteristics are changed by replacing rigid hinge connections with resilient suspension members. This parameter change transforms the connection from one that transmits all vibrations directly to one that selectively filters and controls vibration transmission, making the vibration behavior predictable and controllable.
3Productivity
If rigid connection of vibrators to frame is used, then vibration transfer is efficient, but the connections are subjected to intense vibrations and high loads
Solution Approach 1:
The vibration transfer path is segmented into controlled rigid connections (vibrator to clamping jaw) and controlled resilient connections (clamping jaw to frame). This segmentation allows efficient vibration transfer where needed while isolating connections from excessive loads.
Solution Approach 2:
The clamping jaw acts as an intermediary element between the vibrator and the frame. It receives vibrations directly from the vibrator through a rigid connection for efficient transfer, while its connection to the frame is mediated by resilient suspension members that protect against excessive loads.
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 provides a robust and predictable vibration behavior, enhancing the durability and adaptability of the pile driving installation while maintaining efficient vibration transfer and pulling forces.
Implementation Method 1
the vibrations generated by the vibrators are directly transferred to the clamping jaws
Implementation Method 2
the clamping jaws are resiliently supported with respect to the frame
Implementation Method 3
these suspension members should be strong and stiff enough to transfer pulling forces onto the clamping jaws
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A pile driving installation comprises a mast (2) for supporting a pile (30) as well as a vibration device (1), which vibration device (1) comprises vibrators (3), a frame (4) which is slidable along the mast, as well as clamping means (5) comprising at least one set of clamping jaws (7). The clamping jaws are pivotable with respect to each other and at one end are connected to each other through an actuator (17) for transferring the clamping jaws between an open position for allowing the vibration device and the pile to slide along each other, and a closed position for clamping the vibration device onto the pile. The vibrators are rigidly connected to the clamping jaws and the clamping jaws are resiliently supported with respect to the frame.