Torque Support Linkage for Roll Drive Movement and Position Accuracy
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Solution Overview
Problem
Existing torque supports in calender or rolling mill drives introduce retroactive forces that affect the accuracy of the system and limit the movement of rolls, and designs with two external coupling points fix the drive in position, preventing complete compensation for movements.
Innovation Solution
A torque support system with rotatable force-conducting elements that transmit only tensile and compressive forces, using two sets of elements fixed to the shaft drive and a support element, allowing for independent movement and maintaining roll position accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a torque support with one-sided interception is used, then the torque can be absorbed, but retroactive forces are introduced into the bearing arrangement affecting accuracy
Solution Approach 1:
The torque support is divided into two separate force-conducting elements (first and second elements) that independently conduct forces from opposite sides of the drive. This segmentation allows each element to handle torque without creating unbalanced retroactive forces on the bearing, thus maintaining roll position accuracy while absorbing torque effectively.
Solution Approach 2:
The force-conducting elements are arranged asymmetrically with respect to the drive, with one element positioned to handle compression and the other to handle tension. This asymmetric arrangement ensures that retroactive forces are balanced and do not create net forces affecting the bearing or roll position, resolving the contradiction between torque absorption and position accuracy.
2Manufacturing precision
If two external coupling points are used to absorb torque, then no retroactive forces are introduced, but the drive is fixed in position and cannot compensate for movements
Solution Approach 1:
The force-conducting elements are designed with rotatable connections at both ends, making the torque support dynamic rather than rigid. This allows the drive to move freely to compensate for movements and maintain optimal roll position, while the force-conducting elements continuously absorb torque without fixing the drive in a fixed position, thus resolving the contradiction between position stability and movement freedom.
Solution Approach 2:
The rotational capability of the force-conducting elements changes the system's degrees of freedom, allowing the drive position to vary while maintaining torque absorption. This parameter change enables the system to adapt to movement requirements while preserving position stability through active compensation.
3Power
If the torque support is externally connected to a fixed point, then torque can be absorbed, but the roll bearing movement is limited
Solution Approach 1:
The force-conducting elements incorporate rotatable connections that allow the roll bearing to move freely in all directions while continuously absorbing torque. The dynamic nature of these connections eliminates movement restrictions that would otherwise be imposed by rigid external connections, resolving the contradiction between torque absorption and movement freedom.
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 system transmits torque without introducing retroactive forces, enabling free movement of the drive and maintaining roll position, thus ensuring system accuracy and flexibility.
Implementation Method 1
When intercepting moments, one of the two first force-conducting elements is a compression element and the other is a tension element
Implementation Method 2
When intercepting moments, one of the two first force-conducting elements is a compression element and the other is a tension element
Implementation Method 3
two first force-conducting elements, which are each fixed to the shaft drive at a distance from one another by a first end, and having a support element which is arranged at a distance from the shaft drive and to which the first force-conducting elements are each fixed rotatably
Data Source
AI summary
A torque support for absorbing drive torques of at least one shaft drive, having two first force-conducting elements, each of which is rotatably fixed to the shaft drive at a distance from one another by a first end, and having a support element arranged at a distance from the shaft drive, to which support element the first force-conducting elements are each fixed rotatably and at a distance from one another by a second end opposite the first end, and spaced apart from one another, and having two second force-conducting elements which are each fixed at a first end to the support element in a rotatable manner and spaced apart from one another and are each fixed at a second end, opposite the first in each case, to a fixed element which is independent of the shaft drive in a rotatable manner and spaced apart from one another. A corresponding roller arrangement is further disclosed.