Lifting Apparatus Oblique Traction Stabilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lifting apparatuses face instability during lateral deflections and rotational movements, particularly when handling heavy objects, due to uncontrolled pendular movements and lack of effective stabilization mechanisms.
Innovation Solution
The introduction of oblique traction means that intersect between the two frame assemblies, which are wound and unwound using a tensioning device to provide additional stability, allowing for independent actuation and maintaining tensile stress to prevent uncontrolled lengthening and stabilize the lower frame assembly relative to the upper frame assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If multiple lifting traction means are used to suspend the lower frame assembly, then the lifting capability and load distribution are improved, but uncontrolled rotation and pendular movements occur during operation
Solution Approach 1:
The stabilization function is segmented from the lifting function by introducing separate oblique traction means that are distinct from the vertical lifting traction means. This segmentation allows independent optimization of lifting capability and rotational stability.
Solution Approach 2:
The oblique traction means are arranged at angles relative to the vertical axis, introducing a dimensional change from purely vertical lifting to angled stabilization. This angular arrangement creates horizontal components of tension that counteract rotational movements and stabilize the lower frame assembly.
2Stability of the object's composition
If the lifting traction means are deflected multiple times to minimize pendular movements, then lateral stability is improved, but the lower frame assembly remains vulnerable to lateral deflections
Solution Approach 1:
The oblique traction means are rigidly connected to both frame assemblies, merging the stabilization function into the structural connection between upper and lower frames. This rigid connection provides reliable protection against lateral deflections while maintaining lateral stability during operation.
3Stability of the object's composition
If additional traction means are introduced to stabilize the lower frame assembly, then rotational stability is improved, but the device complexity increases
Solution Approach 1:
The oblique traction means serve multiple functions: they provide rotational stabilization, prevent lateral deflections, and contribute to the overall structural rigidity between frame assemblies. This multi-functionality reduces the need for separate stabilization mechanisms, thereby limiting the increase in device complexity.
Solution Approach 2:
The oblique traction means are designed with adjustable tensioning capabilities, allowing optimization of the stabilization effect without requiring excessive structural complexity. By adjusting tension parameters, effective rotational stability is achieved with minimal additional components.
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 significantly reduces undesired pendulum movements and rotations, enhancing the overall stability of the lifting apparatus by separating the lifting and oblique traction means, allowing for precise control and maintaining the required tension for stabilization during lifting operations.
Implementation Method 1
winding of the lifting traction means allows the lower frame assembly to be drawn up towards the upper frame assembly by means of a raising/lowering device
Implementation Method 2
The tensioning device is able to retain each of the oblique traction means under tensile stress during winding and unwinding of the lifting traction means
Implementation Method 3
two of which in each case mutually intersect such that the lower frame assembly is stabilized, relative to the upper frame assembly, in at least one deflection direction that extends transversely to the vertical direction
Data Source
AI summary
A lifting apparatus for raising and lowering objects has two frame assemblies positioned one above the other, so as to be mutually parallel, with respect to a vertical direction, the lower frame assembly suspended on the upper frame assembly using lifting traction means, such that the lower frame assembly can be drawn up towards the upper frame assembly by winding the lifting traction means, and the lower frame assembly can be lowered relative to the upper frame assembly by unwinding the lifting traction means. The lifting apparatus has oblique traction means extending between the frame assemblies that can be wound and unwound using a tensioning device, two of which mutually intersect such that the lower frame assembly is stabilized, relative to the upper frame assembly, in at least one deflection direction transverse to the vertical direction.