System and method for the coupling of a head frame
AssigneeNsl Engineering Pte Ltd
InventorsGhee Hua Ng, ZhanMin Tong
Life of this patent
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Abstract
A system for mounting a head frame to a spreader includes a sheave assembly connecting the head frame to a crane so as to permit the lowering of the head frame, mutually cooperating engagement devices for coupling the head frame and the spreader, an actuator arranged to connect mutually engageable transmission connectors on the head frame and spreader, and a registration device for registering the coupling of the head frame and the spreader. The registration device is arranged to prevent engagement of the transmission connector until the head frame and spreader are coupled.
Claims18
A system for mounting a head frame to a spreader comprising:
- a sheave assembly connecting the head frame to a crane so as to permit the lowering of said head frame;
- mutually cooperating engagement devices for coupling the head frame and the spreader;
- an actuator arranged to connect mutually engageable transmission connectors on the head frame and spreader;
- and
- a registration device for registering the coupling of the head frame and the spreader;
- wherein the registration device is arranged to prevent engagement of the transmission connector until said head frame and spreader are coupled.
A method for mounting a head frame to a spreader comprising the steps of:
- lowering the head frame into contact with the spreader;
- operating engagement devices and so coupling the head frame to the spreader;
- registering the coupling of the head frame and the spreader, and when coupled, then;
- activating an actuator to connect mutually engageable power supply connectors on the head frame and spreader so as to provide a power communication between said head frame and spreader.
A spreader assembly comprising:
- a head frame comprising a main frame and a sub frame;
- a spreader mounted to said sub frame;
- said main frame and sub frame having mutually engageable connecting members in sliding engagement;
- wherein said mutually engageable connecting members provide relative longitudinal movement between said head frame and spreader.
Dependencies are inferred from the claim text.