Rotary Telehandler Pin Locking via Electric Actuator
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Solution Overview
Problem
Current rotary telehandlers face reliability and cost issues with manual pin alignment for road travel, and the use of hydraulic actuators is costly and being phased out due to electrification trends in machinery.
Innovation Solution
A rotary telehandler equipped with an electric actuator and mechanical mechanism that moves a pin between locking and release positions, using a mechanical linkage, worm screw, plate guides, or eccentric body to align and lock the turret with the carriage axis, providing a cost-effective and reliable solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hydraulic actuator is used to move the pin, then the alignment reliability is improved, but the cost increases
Solution Approach 1:
The patent replaces the hydraulic actuator system with an electric actuator system. The electric actuator (3) is connected to the pin (2) and moves it between locking and release positions through electrical actuation rather than hydraulic pressure, thereby reducing cost while maintaining alignment reliability
Solution Approach 2:
The patent eliminates the hydraulic actuator entirely and uses an electrically-driven mechanical system instead. The electric actuator converts electrical energy to mechanical motion to position the pin, removing the need for hydraulic fluid, pumps, and associated components, thus reducing cost while preserving the locking function
2Ease of manufacture
If manual pin insertion is used, then the cost is reduced, but the reliability and operator convenience deteriorate
Solution Approach 1:
The system performs the pin alignment operation automatically through the electric actuator (3) without requiring manual intervention. The actuator self-actuates to move the pin (2) into the locked position, ensuring consistent alignment reliability while reducing operational complexity and cost compared to hydraulic systems
Solution Approach 2:
The electric actuator serves as an intermediary device between the control system and the pin mechanism. It translates electrical commands into precise mechanical positioning of the pin, providing reliable automated alignment without the high costs of hydraulic systems or the unreliability of purely manual operation
3Ease of manufacture
If manual pin insertion is used, then the cost is reduced, but the operator convenience deteriorates
Solution Approach 1:
The electric actuator system performs the pin alignment operation automatically without requiring the operator to manually insert or position the pin. The system self-actuates through electrical control, making the operation convenient while maintaining cost-effectiveness
Solution Approach 2:
The patent replaces manual mechanical pin insertion with an electrically-driven automated system. The electric actuator (3) automatically positions the pin (2), eliminating the need for operator intervention and significantly improving convenience while keeping costs low compared to hydraulic alternatives
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 electric actuator and mechanical mechanism ensure reliable and cost-effective alignment of the turret with the carriage axis, enhancing safety and reducing operational inconvenience while aligning with regulatory requirements.
Implementation Method 1
an electric actuator (3) which is configured to move, by means of a mechanical mechanism (4), the pin (2) between the first position and the second position
Implementation Method 2
a mechanical mechanism (4) interposed between the pin (2) and the electric actuator (3)
Implementation Method 3
using a mechanical linkage, worm screw, plate guides, or eccentric body to align and lock the turret with the carriage axis
Implementation Method 4
the pin (2) prevents a relative rotation between the turret (17) and the carriage (10)
Data Source
AI summary
A rotary telehandler including a carriage movable on wheels, a tower mounted rotatably on the carriage, an actuating device configured for rotating the tower with respect to the carriage, a pin movable between a first position, wherein the pin prevents a relative rotation between the tower and the carriage, and a second position wherein the pin allows a relative rotation between the tower and the carriage. The telehandler includes an electric actuator and a mechanical mechanism connected or connectable to the pin and to the electric actuator, the electric actuator is configured to move, by means of the mechanical mechanism, the pin between the first position and the second position and to apply a pushing force on the pin to keep the pin in the first position for locking the telehandler in an operating condition of road travel wherein the tower is aligned with an axis of the carriage.