Handling solutions

HANDLING SOLUTIONS

Transport from main deck to moonpool

2014.06.23

HANDLING SOLUTIONS

Our Philosophy:

Task oriented design;

Robust solution with low part count;

Intrinsically safe;

Flexible for customization.

Stack Up Guide

HANDLING SOLUTIONS

Products:

Cargo Ramp

Skidding System

Stack Up Guides

Cargo Ramp

HANDLING SOLUTIONS

Skidding Systems:

Tractor and pallet

Bidirectional self driven pallet

Tractor type

Bidirectional pallet type

HANDLING SOLUTIONS

Skidding Systems: Tractor type highlights

Capacity from 30 to 100mT;

Heavy duty shoe for propelling; (Friction clamping)

Fail safe locking shoes;

Dual speed system;

Operator stand;

Hose reel.

Front fail safe locking shoe Back heavy duty locking shoe

HANDLING SOLUTIONS

Skidding Systems: Pallet type highlights

Dual direction fail safe locking shoe; (Hole clamping)

Capacity from 30 to 100mT;

Bidirectional movement;

Lightweight remote control;

Compact solution.

Fail safe locking shoe Remote control

www.staveng.no

Tractor System Moving TTRD from main deck to moonpool

1. Cargo Ramp;

2. Skidding Tractor;

3. Stack Up Guide.

Cargo Ramp

1

2

3

System designed to handle several

types of loads;

Commonly used for the transport

of x-mas trees;

One tractor can drive several

pallets at same time.

Tractor type

The pallets can be custom made to

perform several functions, ex.

- Fitted with man riding cranes;

- Fitted with working structures;

Several pallets can be push/pulled

at once with one tractor;

Pallets use polymeric bearings to

contact the skidding beam.

Generic pallet

Several lifting points to easily

move tractors and pallets.

Lifting points

Lifting points

Several lifting points to easily

move tractors and pallets.

Optionally clamps can be added on

the pallet to avoid sliding while

they are in parking position.

The pallets are secured in position

when connected to the tractor

without further requirement due to

the fail safe clamp feature;

In case of sudden pressure loss,

the front clamp automatically locks

(Fail safe).

Fail safe clamp

Quick connection system between

pallets and tractor without the

requirement of tools;

The interface component is aimed

to significantly reduce operator

effort for the connection;

Connection parts can also be

made extensible to further ease up

the process.

Pallet interface

The back clamp shoe uses friction

made by 2 heavy duty hydraulic

cylinders to clamp the skid beam;

At all times there is at least two

clamp locked (Forward or back

clamps acc. to movement);

The hydraulic cylinders are fitted

with load holding valves.

Back heavy duty clamp shoe

Shoe geometry is optimized to

reduce stress from the skidding

beam, allowing a overall

lightweight skidding beam;

Is easy to detach the clamps from

the skidding beams using the

rotation pin and removing the

safety locks.

Front shoe CAE model

The tractor includes one dual hose

reel to handle one and one 1 hydraulic hose;

The front clamps are powered

using hoses routed in one

articulated arm from the tractor.

Hoses routing

The stack up guide engages the

TTRD stabilizing it, for stack up;

The articulated arm is hydraulically

actuated, with variable angle

positions to allow greater control;

The stack up dolly is moved using

one hydraulic cylinder in the

vertical axis.

Stack up guide

The TTRD is lifted using a

dedicated crane available in the

stack up area.

Stack up guide

Dual speed system allows to fast

recover between intermediate

positions;

The hydraulic cylinders are driven

according to operator selection on

the control panel.

Dual speed

The control panel is integrated on

the operator platform;

The hydraulic control valves are

located under the control panel,

with easy access but protected

from the elements.

Control Panel

The control panel integrates:

- Forward/Backward control;

- Front/Rear clamping;

- High/low speed;

- Alignment control;

- Pressure gauges to monitor

hydraulic cylinders pressure.

Control Panel

The hydraulic system is made

simple and reliable with the

minimum required parts, functions

can be added or removed

according to client specifications.

Control Panel

Bumpers on the pallets allow to

push them even without linking

them to each other.

Cargo Ramp

www.staveng.no

Pallet System Moving TTRD from main deck to moonpool

1. Cargo Ramp;

2. Skidding Pallet;

3. Stack Up Guide.

Alternative cargo ramp system

1

2

3

The self propelled pallet has

extended capabilities when

compared to a passive pallet.

The pallet has the particularity of

being able to move not only back

and forward, but also sideways.

The pallet is controlled by a

lightweight remote control.

Pallet type

The propelling mechanism uses

slots on the skidding beams to lock

to it and push/pull the pallet;

The pallet is ALWAYS LOCKED to

the skidding beams by means of at

least one locking shoe.

Locking shoe

The stacking in alternative can be

performed on the cargo ramp;

For this type of operation

procedure, the cargo ramp is fitted

with the stack up guide in the main

elevator.

Cargo ramp with stack up guide

The locking shoe block completely

the pallet in place;

The hydraulic locking provides a

safer locking capability compared

with gravity locks, that have always

one unlocked direction;

The shoe has one lateral

inspection window to visually

confirm the locking function.

Locking shoe

To lock the moving direction, it has

one swivel locking mechanism on

pallet corners;

The movement is performed at

intersections and is a warranty that

the user accurately placed the

pallet for direction change.

Direction locker

Bidirectional function

To move in two direction the pallet

has 4 hydraulic cylinders actuated

independently;

Each cylinder has it own self-

sustained locking shoe.

Technical Specifications

Cargo ramp compatibility

Stack up compatibility

SWL Load capacity 30-100 ton 30-100 ton

Weight (approx.) 7 ton (with pallet) 5,5 ton

Transport envelope - Pallet Passive, propelled by tractor Active, self-propelled

Dual speed mode

Locking system Friction clamp Hole clamp

Bidirectional movement

Locking in both directions (Fwd/Bwd)

Fail safe locking

Locking indicator / flag Control panel indicator Locking shoe window

Polymeric bearings Only on pallets


Easy clamp detach/lift-off function

Polimeric bumpers

Hose routing to clamps Articulated arm Drag chain

Control panel / system operation Purpose built stand Lightweight remote control

Remote control weight NA 5kg with chest strap

Hydraulic connections Non spilling quickcouplings Non spilling quickcouplings

Integrated jamming release

Individual cylinder actuation mode

Hose reel

Allowable hell angle (ALS) 27 27

Multi-pallet dragging

Stackable Only pallets are stackable


Design codes

DNV-OS-E101 Drilling Plant DNV 2.7-3 Portable offshore units Directive 2006/42/EC EU machine directive NORSOK S-001 Technical safety NORSOK S-002 Working environment NORSOK M-501 Surface preparation and protective coating NORSOK M-001 Material selections NORSOK R-002 Lifting equipment NORSOK R-003 Safe use of lifting equipment TR3101 Fasteners GL 0257 Handbook, reliable securing

(other standards on request)

Documents

Handling solutions