Tube Rolling Head With Eccentric Pressure Adjustment for Long Pipes
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Solution Overview
Problem
Existing devices for processing round bodies, such as pipes and support sleeves, face challenges in efficiently and flexibly adjusting radial pressure to accommodate different sizes and shapes, particularly when dealing with long pipes that cannot be easily inserted into a closed ring-shaped pressing chamber.
Innovation Solution
A device featuring a rolling element holder with an eccentric shaft that allows for quasi-arbitrary radial adjustment of rolling elements, enabled by a non-round or non-concentric eccentric shaft contour, and a mechanism for locking the rotation direction, allowing for controlled radial inward movement and enabling the use of multiple rolling elements with coordinated programs to manage compressive forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a closed ring-shaped pressing chamber is used, then the device can apply radial pressure uniformly, but long pipes cannot be easily inserted for processing
Solution Approach 1:
The pressing chamber is divided into two separate pressing jaws instead of a closed ring structure. Each jaw can be independently positioned and adjusted, allowing the jaws to be moved apart to insert long pipes and then brought together to apply pressing force. This segmentation resolves the contradiction by enabling both insertability and uniform pressure application.
2Adaptability or versatility
If fixed radial pressure is applied, then the pressing force is sufficient for standard applications, but different pipe sizes and shapes cannot be accommodated
Solution Approach 1:
The device incorporates an adjustable mechanism that allows the radial pressure and positioning of the pressing jaws to be dynamically changed. The adjustment device enables operators to modify the distance between pressing surfaces and the amount of radial force applied, accommodating different pipe diameters, wall thicknesses, and shapes while maintaining sufficient pressing force for each specific application.
3Adaptability or versatility
If multiple rolling elements are used to process different areas, then comprehensive coverage is achieved, but the compressive forces become difficult to control
Solution Approach 1:
The adjustment device functions as a coordinated control system that synchronizes the movement and force application of multiple rolling elements. By linking the adjustment mechanisms, the system maintains proportional force distribution across all rolling elements, ensuring that each element applies appropriate compressive force relative to the others, thus achieving comprehensive coverage while maintaining reliable force control.
4Productivity
If manual rotation of the rolling element holder is used, then the device is simple to operate, but the processing speed is limited
Solution Approach 1:
The device incorporates a drive shaft with a polygonal cross-section that can accept both manual operation (via spanner or ratchet wrench) and mechanical automation (via drill chuck or cordless screwdriver). This multi-functional drive interface allows the same device to operate at different speeds and automation levels, enabling increased processing speed through mechanical rotation while maintaining the simplicity of manual operation when needed.
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
Enables efficient and flexible processing of round bodies by allowing for precise radial adjustment and controlled force application, accommodating various pipe sizes and shapes, including long pipes, through a simple and robust mechanism that can be powered manually or mechanically.
Implementation Method 1
the eccentric shaft has a contour that is non-round or non-concentric with respect to its axis of rotation and on which the carrier of the rolling body rests with at least one scanning point, the scanning point of the carrier is moved according to the scanned contour when the eccentric shaft rotates
Implementation Method 2
rolling bodies which can rotate around axes parallel to the working axis and which press on the round body
Implementation Method 3
By rotating the rolling body holder relative to the handle around the working axis, a round body located in the pressing chamber and extending along the working axis can be machined circumferentially by the rolling body pressing on it rotating around the round body
Data Source
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AI summary
The invention relates to a device for processing tubes (R) and other round bodies (S) and includes a) a rolling element holder (200) with at least one rotatably mounted rolling element (204) which can exert pressure on a round body located in the pressing chamber (P) of the rolling element holder, with a movable carrier (203) on which the rolling element (204) is rotatably mounted and which is pivotably mounted on the rolling element holder (200), and with a rotatable eccentric shaft (209) which is scanned by the carrier (203); and b) a handle (100) in which the rolling element holder (200) can be rotatably mounted about a working axis (A) which leads through the pressing chamber (P).