Scissor Stabilizer Retraction Sequence for Telescopic Handlers
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Solution Overview
Problem
Existing telescopic handlers require lengthy stabilizer retraction sequences, limiting their efficiency and operational speed, as they need to stabilize loads at high heights and wide ranges, and current scissor-type stabilizers take time to return to non-operating configurations, affecting the overall use and efficiency of these expensive and bulky machines.
Innovation Solution
A system with scissor-type stabilizers equipped with telescopic arms and hydraulic cylinders, controlled by a processing unit, which allows for a retraction sequence where the sliding members are retracted before the arms reach the rest position, enabling the operator to start driving sooner and optimizing the stabilizer's retraction process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the stabilizing arms are moved to horizontal parallel position after complete retraction of sliding members, then the stabilizers are correctly recovered, but the operation time is excessive and efficiency is reduced
Solution Approach 1:
The sliding members are retracted completely into the first segments before the arms reach the horizontal parallel position. This preliminary retraction action allows the arms to be rotated to the rest position with minimal overall dimensions, enabling the operator to start driving sooner and reducing total recovery time while maintaining correct stabilizer recovery.
Solution Approach 2:
The system dynamically adjusts the retraction sequence by allowing the arms to rotate to a first partially raised position before complete retraction of sliding members. This dynamic sequencing optimizes the recovery process, reducing the time required while ensuring the stabilizers are correctly recovered in the non-operating configuration.
2Reliability
If the sliding members are retracted completely only after arms reach horizontal position, then the stabilizers are properly recovered, but the machine cannot move sooner and operational efficiency is limited
Solution Approach 1:
The sliding members are retracted completely into the first segments before the arms reach the horizontal parallel position. This preliminary retraction action allows the arms to be rotated to the rest position with minimal overall dimensions, enabling the operator to start driving sooner and reducing total recovery time while maintaining correct stabilizer recovery.
Solution Approach 2:
The system dynamically adjusts the retraction sequence by allowing the arms to rotate to a first partially raised position before complete retraction of sliding members. This dynamic sequencing optimizes the recovery process, reducing the time required while ensuring the stabilizers are correctly recovered in the non-operating configuration.
3Stability of the object's composition
If the stabilizing arms remain in extended configuration, then the machine has stable support, but the lateral dimensions are large and maneuverability is reduced
Solution Approach 1:
The stabilizing arms are divided into two segments: a first segment fixed to the supporting frame and a second segment that can slide within the first segment. This segmentation allows the arms to be telescoped to minimal dimensions during retraction, reducing lateral dimensions while maintaining stability when extended.
Solution Approach 2:
The second segment is nested within the first segment, allowing the stabilizing arms to be telescoped. When retracted, the second segment is completely inserted into the first segment, minimizing the overall lateral dimensions of the stabilizers while maintaining structural integrity and stability when in the extended operating position.
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 the time required for stabilizer retraction, enhancing the operational efficiency of telescopic handlers by allowing earlier vehicle movement and minimizing the machine's lateral dimensions during retraction, thus improving the overall use and efficiency of these machines.
Implementation Method 1
a second segment (22), which can move with respect to the first segment (21) in a telescopic fashion, wherein a hydraulic cylinder (5) is connected to the first segment (21) and to the second segment (22) so as to move the second segment (22) with respect to the first segment (21)
Data Source
AI summary
Described is a system for stabilizing a self-propelled operating machine (1), comprising scissor-like stabilizers (10), designed to pass from operating configurations, in which they stabilize the machine (1), thereby raising the wheels (22) above the ground, to a rest configuration, in which the wheels (11) are returned to the ground, in turn comprising: one or more pairs of rotatable stabilizing telescopic arms (2), each arm (2) comprising a first segment (21) and a second segment (22) extendable and retractable relative to the first segment (21) and equipped with a foot (20) for contact with the ground; first movement means (3) designed to rotate the arms (2) between a completely raised position and lowered working positions; second movement means designed to move the second segments (22) between a completely closed position and extended positions; and a processing unit configured to control the first and second movement means in such a way that the stabilizers (10) perform the following retraction sequence: rotating the arms (2) upwards to a first partially raised position; retracting the second segments (22) to a completely closed position; rotating the arms (2) upwards to the completely raised position, so that the stabilizers (10) are in the rest position.