Crown-Shaped Radial Press Structure for Longer Force Stroke
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Solution Overview
Problem
Existing radial presses face limitations in optimizing the relationship between effective pressing force, maximum pressing path, and overall length, which restricts their applicability and efficiency, especially in non-standard applications, and can lead to tilting and damage due to off-centered force input.
Innovation Solution
The radial press features a crown-shaped annular structure with axial projections matching the number of press jaws, larger control face lengths, and recesses on the bracing disk, allowing increased pressing force and path without increasing overall length, ensuring stable pressing and reduced wear through improved geometric alignment and force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the control faces are made longer to increase pressing force and path, then the pressing performance is improved, but the overall length of the radial press increases
Solution Approach 1:
The control faces are constructed on axial projections that extend into the bracing disk, creating a nested configuration where the control faces are positioned within the radial depth of the bracing disk rather than extending axially. This allows longer effective control face lengths for increased pressing force and path without increasing the overall axial length of the press.
Solution Approach 2:
The control faces are arranged in the radial dimension by constructing them on axial projections of the annular structure that engage with recesses in the bracing disk. This dimensional reconfiguration transforms the control face arrangement from an axial extension to a radial engagement, enabling longer pressing paths without increasing overall length.
2Adaptability or versatility
If off-centered force input is applied during pressing, then pressing can be performed on non-standard applications, but tilting and damage occur
Solution Approach 1:
The crown-shaped annular structure features axial projections that are asymmetrically positioned to correspond with potential off-center pressing requirements. The control faces on these projections can engage with recesses in the bracing disk at various radial positions, allowing adapted pressing for non-standard applications while the distributed projection geometry maintains overall stability even with off-centered force input.
Solution Approach 2:
Different axial projections on the crown-shaped annular structure can have control faces with different geometries, positions, and engagement characteristics. This local differentiation allows the press to adapt to various application requirements including off-center pressing, while each local engagement point maintains proper force distribution to prevent tilting and damage.
3Length of moving object
If the pressing path is increased to improve pressing capability, then the maximum pressing path is extended, but the cycle time increases due to longer traversal
Solution Approach 1:
The helical gearing with sawtooth profile on the conical inner face of the annular structure, in cooperation with corresponding gearings on the press jaws, enables stepwise rotation of the press jaws around the press axis during the pressing cycle. This periodic rotational action allows the pressing path to be accomplished through incremental jaw movement rather than continuous linear traversal, reducing cycle time while maintaining extended pressing capability.
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 radial press's ability to apply significant pressing forces without tilting, ensures better dimensional stability, and expands its application range by optimizing the relationship between pressing force, path, and length, making it suitable for diverse tasks including calibration pressing.
Implementation Method 1
control faces, which are inclined relative to the press axis and bear against mating faces of the press jaws constructed as sliding faces
Data Source
AI summary
A housing of a radial press has a casing section and an annular end-face support disc. An annular structure is movably guided in the housing along a press axis, and multiple press jaws arranged about the press axis are supported on the support disc so as to be movably guided in the radial direction. The annular structure acts on the press jaws by means of control surfaces which are inclined relative to the press axis and which lie against press jaw counter surfaces designed in the form of sliding surfaces. The end face of the ring structure facing the support disc is designed with axial protrusions. Each control surface protrudes into the radial inner surface of one such protrusion, and the support disc has recesses which are paired with the protrusions and into which the protrusions enter when the radial press is closed.