Lifting Device Linear Actuator Torque Reduction
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Solution Overview
Problem
Existing lifting devices for vehicle transporters require more space and higher torque for pivoting, which limits their efficiency and interferes with adjacent vehicles during operation.
Innovation Solution
A lifting device with a linear actuator connected to the first pivot arm, allowing independent actuation and space-saving pivoting, with a telescopically mounted boom that extends only after pivoting is complete, reducing the required torque and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the telescopically mounted boom is extended during pivoting movement, then the lifting height is achieved, but more space is required and higher torque is needed
Solution Approach 1:
The patent applies preliminary action by completing the pivoting movement to the end position before extending the boom. This sequence allows the first pivot arm to be positioned optimally (with shorter lever arm) before the boom extension, thereby reducing the torque required during the pivoting phase and minimizing the space occupied during the lifting operation.
2Force
If the first pivot arm is made shorter, then less space and lower torque are required, but the lifting height may be compromised
Solution Approach 1:
The patent resolves the contradiction by introducing the telescopic boom extension as an additional dimensional solution. Instead of relying solely on a long first pivot arm to achieve lifting height, the system uses a shorter first pivot arm combined with boom extension along the longitudinal axis, effectively distributing the height achievement across different spatial dimensions and reducing the torque burden.
3Ease of operation
If the boom is extended during pivoting, then the roadway position is adjusted, but the interfering contour increases
Solution Approach 1:
The patent applies preliminary action by first completing the pivoting movement to position the boom in the correct angular orientation, and only then extending the boom longitudinally to adjust the roadway position. This sequential approach ensures that the boom extends along a controlled path that minimizes lateral interference with adjacent vehicles while still achieving the required roadway positioning.
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 solution enables a more compact design with lower torque requirements, providing more lateral space for adjacent vehicles and efficient longitudinal movement, while maintaining sufficient lifting height and clearance.
Implementation Method 1
the adjustment mechanism for the at least one extension arm is in the form of a linear actuator connected to the at least one first pivot arm
Implementation Method 2
a first pivot arm (2) which is pivotably mounted on a first pivot bearing (1)
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e~1f
AI summary
Lifting device for a roadway (8) of a vehicle transporter (9), comprising at least one first pivot arm (2) pivotably mounted on a first pivot bearing (1), to which a second pivot arm (3) is pivotally articulated, wherein the second pivot arm (3) is pivotally mounted via a second pivot bearing (4), wherein a distance (d) between the first pivot bearing (1) of the first pivot arm (2) and the second pivot bearing (4) of the second pivot arm (3) is changeable by pivoting the second pivot arm (3), and wherein at least one boom (5) is telescopically mounted on or in the first pivot arm (2), to which the roadway (8) is preferably attachable via a joint, wherein an adjustment mechanism for extending and retracting the at least one boom (5) is provided, wherein the adjustment mechanism for the at least one boom (5) is in the form of a connecting element to the first pivot arm (2),is designed to be operable independently of the pivot position of the first pivot arm (2) of the linear actuator (6).