Ball Joint Shaking Device for Roller Alignment
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Solution Overview
Problem
Existing shaking devices for fibrous web production, such as paper or cardboard, face issues with rigid connections that lead to deflection, vibration, wear, and high alignment accuracy requirements, resulting in premature bearing failure and transmission of transverse forces.
Innovation Solution
The use of a temporarily fixable ball joint, which can be clamped, to connect the roller and the movable device, allowing primarily axial force transmission while minimizing transverse forces and reducing the need for high alignment accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If rigid connections are used between the roller and the movable device, then force transmission is effective, but deflection, vibration, wear, and high alignment accuracy requirements occur leading to premature bearing failure
Solution Approach 1:
The patent replaces rigid connections with flexible elements including rubber metalfree elements and spring elements that connect the roller to the movable device. These flexible elements transmit force while accommodating misalignment and reducing stress concentrations, thereby preventing premature bearing failure while maintaining effective force transmission.
2Stability of the object's composition
If rigid connections are used between the roller and the movable device, then structural stability is maintained, but high alignment accuracy is required increasing device complexity
Solution Approach 1:
The flexible rubber metalfree elements and spring elements provide structural stability through their elastic properties while being tolerant of alignment variations. This eliminates the need for high-precision alignment procedures and complex adjustment mechanisms, reducing device complexity while maintaining stable operation.
3Strength
If rigid connections are used between the roller and the movable device, then mechanical strength is sufficient, but transverse forces are transmitted causing wear and vibration
Solution Approach 1:
The flexible rubber metalfree elements and spring elements act as transverse force isolators. They allow axial force transmission while absorbing and isolating transverse forces through their elastic deformation, thereby reducing vibration and wear without compromising mechanical strength.
4Object-generated harmful factors
If temporarily fixable ball joint is used to connect roller and movable device, then transverse force transmission is reduced, but connection reliability may be compromised
Solution Approach 1:
The flexible rubber metalfree elements and spring elements provide continuous reliable connection while isolating transverse forces. The flexibility allows the connection to accommodate operational variations and stress changes without compromising reliability, unlike rigid or temporarily fixable ball joints.
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 solution effectively reduces the transmission of transverse forces and minimizes the requirement for precise alignment, leading to reduced maintenance costs and improved durability of the shaking device.
Implementation Method 1
the connection between the roller and the device comprises at least one ball joint which can be temporarily fixed, in particular clamped
Implementation Method 2
a first, with the roller (2) has an eccentric drive (10) connected in the direction of the roll axis and a second eccentric drive (11) connected to the roll in the direction of the roll axis
Data Source
Figure 1~2
Figure 3~4
AI summary
The shaking device (1) has two eccentric drives connected with a roller (2) in a direction of a roller axis, and motors for driving the eccentric drives, where the eccentric drives are supported in and/or at a common and movable device e.g. carriage, stand and frame. A single-piece shaking rod (9) directly or indirectly connects the rollers and the movable device with each other, and a clampable ball joint (17) is provided in the connection (V) between the roller and the movable device. The ball joint is arranged at a side of the shaking rod.