Seaeye Subsea Winch & Slip Ring TMS
Seaeye winch and slip ring TMS during
recovery to the lock latch
Seaeye offer the choice of bale arm or subsea
winch and slip ring TMS systems. This page describes the Type
5 subsea winch and slip ring TMS.
The Type 5 Seaeye TMS was developed to provide
a garage system for Seaeye ROVs that is a capable of much
longer ROV excursions than are possible from lower cost bale
arm TMS systems like the Seaeye TMS Types 2, 3 and 4. This
is achieved by incorporating a subsea winch system and slip
ring assembly above a side entry garage.
BENEFITS OF A SEAEYE SUBSEA WINCH AND SLIP RING TMS
- Longer ROV excursions from the TMS to provide greater
- Adjustable entry height to accommodate tooling skids
- Fits all Seaeye ROVs without modification (except Seaeye
Surveyor Plus and Panther - requires modification)
- Power pack motor common spare part with Seaeye SM4/M
- Manual latching for dead TMS recovery
- Auto ROV release on payout to eliminate tether damage
- Compensator pressure gauges to monitor hydraulic leaks
- TMS camera and light to assist vehicle entry
- Tilting drive sheave smoothes the path and reduces
stress on the tether
The Seaeye Type 5 TMS is constructed using 6082 marine aluminium.
The structure is protected from corrosion with the installation
of sacrificial anodes which are bolted to the main frame,
the outer sections of the frame are protected from bump damage
by H.D.P.E. (High Density Polyethylene). The lifting point
is a gimble design with the main pins being made from Grade
17-4 PH stainless steel and this is attached to the lifting
bullet. Internal areas of the garage are protected with HDPE
strips to avoid damage to the vehicle.
Deploying a Seaeye Type 5 TMS
The motor used to drive the power pack is a standard
Seaeye SM4/M Thruster Motor which drives dual gear type pumps
at 1800 R.P.M. Each pump has its own suction filter and pressure
The power pack is separately pressure compensated
at 7.5 psi over ambient pressure using a 2.5 pint (1.42 litre)
hydraulic pressure compensator and a gauge is provided within
sight of the TMS camera to monitor this pressure.
A single solenoid valve provides the flow to
drive the winch drum and sheave wheel motors during pay out
of the tether. When the winch drum is reversed to heave in
the tether the sheave wheel is put into constant tension to
create the necessary tension on the tether. This is achieved
by a pilot operated check valve incorporated in the hydraulic
system. Both the drum and sheave wheel motors are Gerator
units that provide high torque from a compact unit
The gearing of these two motors is via stainless
steel chain. The main drum motor having a 32 tooth sprocket
with the drum carrying a 262 teeth gear. The sheave motor
has a 13 tooth sprocket and the sheave itself carries a 40
An additional drive sprocket is taken from the
main drum with a 1:1 ratio to operate the stainless steel
diamond bar on the level wind mechanism. The diamond bar has
a pitch to match the tether enabling the tether to be wound
on to the drum in an even manner.
The driven sheave is hinged at the out let point
to the garage and follows the level wind to ensure that the
tether is always directly in line with the drum and the ROV.
Slip Ring and Junction Boxes
Incorporated on the sides of the drum are the slip rings and
rotating junction box that transfer power and signals from
the main lift umbilical to the TMS and ROV.
The slip ring is connected to the rotating junction
box via an oil filled Tygon tube. The slip ring and junction
box are oil filled and pressure compensated to 5 psi and 7.5
psi respectively. Compensation oil system bleed points are
provided. Gauges are provided within sight of the TMS camera
to monitor the compensator pressure.
Bolted to the main frame underneath the slip
rings is located the static junction box which transfers power
and signal from the main lift umbilical to the slip rings.
Both junction boxes are manufactured from Nylatron and have
clear Perspex covers.
A latching system is located in the rear of the garage. This
ensures that the vehicle will remain locked in the garage
until the latch is hydraulically released. The latch is operated
via a single acting spring loaded ram assembly which automatically
locks on to the vehicle when it is driven into the garage.
The vehicle is automatically released when tether is paid
Seaeye Type 5 TMS, Lynx & LARS
||1500 to 1900 mm
|Weight in air with 200 m tether
And 60 Kg ballast
|Aperture opening width
|Aperture opening height
||Adjustable 650 to 950 mm
||Marine aluminium & H.D.P.E.
|Tether Drum Capacity
||Over 250 m of 17 mm diameter tether
SPECIFICATIONS MAY CHANGE WITHOUT PRIOR NOTICE