|
|
|
Automatic
lubrication system TWIN 2 lubricant
"Optimum
lubrication for the best protection!"
|
|
 A
lubrication system can be a key component for the continuity of your
business processes. The system automatically lubricates every lubrication
point on your machine or vehicle. In addition, the system monitors
the lubrication process and informs the user in the event of a malfunction.
This is essential, particularly when using off-road equipment under
extreme conditions, and industrial installations. The increasing demand
from manufacturers and end users for a lubrication system for a class-2
lubricant has led to the development of the TWIN lubrication system.
An automatic lubrication system suitable for the use of class-2 lubricants,
combined with all the advantages of a single line system. |
For
25 years, Groeneveld have been the specialists in the field of automatic
lubrication systems for transport and industry.
The Groeneveld lubrication system
is characterized by solid construction, ingenious layout and innovative
attachment techniques. As a result, the system is very suitable
for use in demanding conditions. With an automatic lubrication system,
you can simultaneously reduce maintenance costs on your equipment,
while increasing operating reliability.
The return on investment with an automatic lubrication system from
Groeneveld takes place in a very short time. Following the completion
of the interval, the integrated electronic control unit starts the
plunger pump. This  pump
builds up a pressure of at least 1450 psi within the system, at
which point the pump automatically switches itself off. Via the
main line with its metering units, metering blocks and the secondary
lines, the correct quantity of lubricant is supplied to the lubrication
points. Once the pump is switched off, the system remains under
pressure for a set period. As a result, all metering units have
sufficient time to fully lubricate the bearings (full lubrication
effect).
|
|
|
|
| A
brief overview of the advantages of the TWIN lubrication system:
|
|
*
easy to expand
*
constant metering under all temperature conditions
*
wide range of metering quantities
*
quick and easy installation
*
monitors main line network with fault indication
*
diagnostics facility
*
database
|
|
|
|
|
| The
TWIN lubrication system consists of: |
|
*
electrical TWIN plunger pump with integrated
control unit
*
main line network
*
pressure switch
*
metering blocks
*
metering units
*
secondary line network
|
|
|
|
|
|
*
plunger pump
*
lubricant reservoir with follower plate and minimum level
switch
*
filler coupling with lubricant filter
*
5/2-way valve
*
integrated control unit
*
overpressure valve
|
| The
plunger pump, mounted beneath the lubricant pump, continues
running until a pressure of 1450 psi is achieved throughout
the entire system. This is necessary to ensure that even those
metering units located furthest from the pump are able to
deliver the required lubricant quantity, under full pressure,
within the cycle time.
|
|
|
|
Lubricant
reservoir with follower plate
|
|
| The
pump is fitted as standard with a follower plate, above the
level of lubricant in the reservoir. The follower plate follows
the lubricant level; in other words, as the level falls, the
follower plate is drawn down, by a spring.
|
| The
advantages of the follower plate in brief:
|
|
*
biodegradable lubricant
*
prevents lubricant oxidation, since no more water condensation
or air can reach the lubricant
*
no funneling effect as the lubricant level falls: all lubricant
is used
*
clean tank walls, permitting the lubricant level to be checked,
at a glance
|
| As
standard, the TWIN pump is fitted with a level switch. This
switch issues an alarm warning if the lubricant level falls
below a fixed minimum. The lubricant reservoir is generally
topped off by hand or - via a filler coupling with lubricant
filter - using a pneumatically-operated filler pump.
|
|
Metering
units, metering blocks and lubricant lines
|
|
In
order to supply all bearings with the correct quantity
of lubricant, a number of different metering unit versions
are available. These can be mounted in any conceivable
combination on a brass or stainless steel distribution
block. The metering blocks are available in stainless
steel and brass, with between 2 and 21 outlets.
A range of different metering units is available for
the TWIN system, each with a different lubricant output.
By carefully selecting the type of metering unit, each
lubrication point receives the correct quantity of lubricant.
The secondary lines represent the link between the metering
units and the lubrication points. These lines (steel
and/or high-pressure hoses) are pre-filled with lubricant,
and have a diameter of approx. 3/16 inch or approx.
15/64 inch (5 or 6 mm). |
|
|
no.
|
output
|
|
0
|
0.025
cc
|
|
1
|
0.05
cc
|
|
2
|
0.10
cc
|
|
3
|
0.15
cc
|
|
4
|
0.20
cc
|
|
5
|
0.25
cc
|
|
6
|
0.30
cc
|
|
7
|
0.35
cc
|
|
8
|
0.40
cc
|
|
8.5
|
0.70
cc
|
|
9
|
1
cc
|
| |
|
|
|
|
Operation
of the metering units
|
|
| Each
metering unit consists of two chambers (one for each duct)
which are repeatedly filled with a specified quantity of lubricant.
If actual lubrication is taking place via one of the two ducts,
the lubricant is forced from one of the chambers, to the lubrication
point in question. The operation of the metering unit is described
below.
|
|
|
|
|
|
|
 At
this stage, the metering unit is not yet filled with lubricant. |
|
|
|
|
Via
the main line duct A, the lubricant is pumped into the 
metering unit (pump stage A). The lubricant pressure forces
the plunger (3) past duct (1). The lubricant then fills chamber
(2) via duct (1) and forces plunger (4) forwards. Over time,
the pressure in the main line duct A drops. This has no effect
on the metering unit. The stroke of the plunger (4) will determine
the size of the final quantity delivered at the lubricating
point. This stroke and the capacity of the chamber (2) are
increased by installing a shorter plunger (4). |
|
|
|
|
Via
main line duct B, lubricant is pumped into the duct (6) of
the metering unit (pump stage B). The lubricant  pressure
forces the plunger (3) back past duct (8). The lubricant then
fills chamber (7) and forces plunger (4) back. The complete
lubricant capacity of chamber (2), on the other side of plunger
(4), is forced to the lubricating point via duct (1), plunger
(3), duct (9) and the secondary line (5). The ball (10) in
the non-return valve is thus forced away, to open the passage
to the secondary line. Over time, the pressure in the main
line duct B drops. This has no effect on the metering unit. |
|
|
|
|
At
this stage, the events as described in stage II are repeated.
However, chamber (7) is now filled with  lubricant.
Plunger (4) is forced forwards during the filling of chamber
(2) with lubricant. The complete lubricant capacity of chamber
(7) is forced to the lubricating point via duct (8), plunger
(3), duct (9) and the secondary line (5). The ball (10) in
the non-return valve is thus forced away, to open the passage
to the secondary line. During the lubrication process, stages
III and IV will occur, alternately. |
|
|
|
Instead
of getting together all the correct tools, the oil drain pan
and rags, preparing a tank or barrel to dump the hot waste
oil into and then climbing under the unit
on
the muddy, wet, dirty or hot ground to change the oil, consider
the way cool alternative. You walk up to the unit to be serviced
with a hose, which is attached to a pump, which is attached
to a waste barrel or tank. You pull off the dust cover on
the male and female quick-disconnects (Q.D.’s), attach
the two, turn on the pump, and within 1-2 minutes, the engine
oil is sucked out and already in the waste drum! Then you
disconnect
the
hose from the engine male quick disconnect and attach it to
the hydraulic male Q.D., turn on the pump and in no time at
all, the hydraulic oil is also sucked out and is already in
the waste tank! You change filters, fill everything back up
to the correct level – you’re finished ….in
less than half the time! No chance of a spill, no burns, no
lost
drain
plugs, no hot oil running down your arms, no chance of sand
or dirt getting into the engine or hydraulic system…just
way safer, faster, cleaner and easier. Time
is money. You make a nasty job easier and cleaner ….
it gets done more often … more units can be serviced
in a shorter span of time. Do the math. This will absolutely
make you money. The payback is very short!
We sell engine, hydraulic and transmission kits to fit darn
near everything you may have. Just tell us what you want!
|
| |
|
|
|
Last
updated: 17 April 2004
© Copyright 2002- 2004 by Refining Systems, Inc.All
rights reserved.
Hosted
by Profit Gate - cheap web hosting, design, and marketing
since 1999.
|
|
|
