suspension equipment catalogue

Transcription

SUSPENSION
EQUIPMENT
CATALOGUE
Reliance Hexham Suspension Equipment Catalogue
CONTENTS
INTRODUCTION .............................................................................................................................................. 3
SUSPENSION EQUIPMENT DESIGN .......................................................................................................... 3
SUSPENSION EQUIPMENT STEELS .......................................................................................................... 4
PRODUCT QUALITY ASSURANCE ............................................................................................................. 4
SECTION 1 – SINGLE ROPE SUSPENSION SYSTEMS ................................................................................. 5
INTRODUCTION ........................................................................................................................................... 5
WEDGE TYPE CAPELS................................................................................................................................ 7
WHITE METAL (OR RESIN) FILLED WIRE ROPE SOCKETS ..................................................................... 9
DETACHING HOOKS ................................................................................................................................. 11
KING STYLE DETACHING HOOK .............................................................................................................. 13
HUMBLE TYPE DETACHING HOOK .......................................................................................................... 15
SECTION 2 – MULTI ROPE SUSPENSION SYSTEMS ................................................................................. 16
INTRODUCTION ......................................................................................................................................... 16
WHITE METAL (OR RESIN) FILLED WIRE ROPE SOCKETS ................................................................... 18
THIMBLE CAPEL ........................................................................................................................................ 20
FINE ADJUSTMENT LINKAGES................................................................................................................. 22
SECTION 3 – BALANCE ROPE SUSPENSION SYSTEMS............................................................................ 24
INTRODUCTION ......................................................................................................................................... 24
INVERTED WEDGE CAPELS ..................................................................................................................... 26
WHITE METAL (OR RESIN) FILLED WIRE ROPE SOCKETS ................................................................... 28
WIRE ROPE THIMBLES ............................................................................................................................. 30
WIRE ROPE SWIVELS ............................................................................................................................... 32
SECTION 4 – MANOEUVRING & GUIDE ROPE EQUIPMENT ...................................................................... 37
INTRODUCTION ......................................................................................................................................... 37
WEDGE SUSPENSION GLANDS ............................................................................................................... 39
SECTION 5 – SPECIALISED SHAFT SINKING EQUIPMENT ........................................................................ 45
INTRODUCTION ......................................................................................................................................... 45
JACK CATCH SOCKETS ............................................................................................................................ 47
SECTION 6 – MISCELLANEOUS EQUIPMENT ............................................................................................. 49
CAGES & SKIPS ......................................................................................................................................... 49
CONTACT DETAILS ....................................................................................................................................... 51
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INTRODUCTION
Reliance Hexham Pty Ltd is a major Australian manufacturer of mining machinery. The company has
specialised in the manufacture of suspension equipment for 20 years.
A full range of suspension equipment is manufactured for single rope, multi rope, balance rope and
guide rope systems, rope handling and shaft sinking operations. The product range includes the two
internationally recognised detaching hooks: King and Humble– the two major types of Capel: wedge
and thimble – and a wide range of chase blocks, sockets, links,
drawbars and swivels. As well as standard suspension equipment
fittings, the company has developed special purpose fittings such as
inverted wedge capels, jack catch sockets and inserted cone and tail
sockets.
The company’s staff prides themselves with their attention to quality,
commitment to service and innovativeness to develop the most cost
effective design solutions.
Reliance Hexham has facilities to undertake all aspects of suspension
equipment supply. This includes the latest 3D drawing programmes,
CNC machining, forging, heat treatment and nationally accredited
proof load test facilities.
SUSPENSION EQUIPMENT DESIGN
The supply of suspension equipment starts with design. Reliance Hexham equipment is designed for
both static load conditions and for fatigue. Safe design is of paramount importance. And in line with
Australian Standards & government regulations, Reliance Hexham suspension equipment has been
designed for static factor of safety of at least 10:1 and capable of withstanding 2.5 times the WLL
without permanent deformation to the suspension equipment. Screwed suspension fittings are
designed to a higher static of safety factor of 15:1.
Suspension equipment components are subjected to load fluctuations due to acceleration,
deceleration and oscillation of the conveyance as it wound up and down the shaft. During a
component lifetime, the component can experience well in excess of one million fluctuations. With
such a large number of load cycles, Reliance Hexham suspension equipment is designed for infinite
fatigue life.
For some suspension equipment components, conventional static elastic design theory is considered
adequate. In such cases, static elastic design is substantiated with computer aided design using finite
design techniques to verify equipment design.
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SUSPENSION EQUIPMENT STEELS
Steels used in the manufacture of suspension equipment have been under continuous review,
research and testing. The essential qualities sought in the steel fatigue strength, ductility and
toughness. The most commonly accepted steel for suspension equipment is 1.5% manganese steels.
The choice of heat treatment may influence the cost of suspension equipment over its lifetime. All
attachments manufactured by Reliance Hexham are hardened and tempered in accordance with
Australian Standard Underground Mining Suspension Equipment AS3637 Part 1 – General
Requirements. Some countries mining regulations require that 1.5% manganese steel is in
normalised condition and be periodically re-normalised.
PRODUCT QUALITY ASSURANCE
Tests are carried out at critical stages of manufacture to ensure the suspension equipment is
manufactured to the appropriate statutory and company quality assurance standards. The steel is
ultrasonically examined prior to manufacture. Magnetic particle examination is carried out after
machining and proof load testing.
Additional tests may be carried out for detaching hooks. Test sample specimens are cut from the
steel used to manufacture detaching hooks and are subject to tensile and strain age testing.
After manufacture, the suspension equipment is proof load tested to ensure it is free from internal
defects. Head and balance rope suspension equipment are tested to two and half times their WLL.
The suspension equipment is subjected to magnetic particle testing to ensure the equipment is free
from surface defects. Once the suspension equipment has passed proof load testing and
examinations, it is then stamped in a low stress area with identification markings.
Finally, test certificates are issued certifying the mechanical properties and chemical analysis of steel,
ultrasonic, magnetic particle examination and proof load test results as well as identification numbers
in accordance with AS3637.1. This includes serial number, description, WLL, grade of steel, heat
treatment and weights. Separate certificates are issued for special purpose tests by nationally
recognised testing authorities.
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SECTION 1 – SINGLE ROPE SUSPENSION SYSTEMS
INTRODUCTION
Reliance Hexham has extensive experience designing, manufacturing and supplying complete
arrangements of suspension equipment needed for single rope suspension systems. There is any
number of alternative arrangements of suspension equipment for single rope
systems and care and understanding must be exercised to select the most
cost effective arrangement. The most suitable suspension equipment fittings
can only be selected following careful consideration of mining regulations,
rope types, design of conveyance, location of conveyance with respect to
headframe, sheave wheel, catch plate or bell and buffer beam and
arrangements to cap the rope.
The rope terminal connection is usually a wedge type Capel or white metal
(or resin) filled (or resin filled) socket. Wedge type capels are probably the
most widely used method of capping the wire rope; they can be used on all
types of rope.
There are three types of detaching hooks used widely throughout the world.
They all operate on a similar principal. Each type of hook has its own
supporters and adherents. Reliance Hexham designs and manufactures
three types: King and Humble. At higher safe working loads, the King and
Humble types are designed with strengthened intrados to reduce the hooks
physical size.
These key suspension equipment items are connected to each other by
purpose designed links, chase blocks and compensating plates.
Chase blocks are favoured over chain links and shackles because of their
precision, greater bearing area and their ability to absorb shock loading
following an overwind.
Reliance Hexham engineers have endeavoured to design the equipment to
be interchangeable with suspension equipment supplied by other
manufacturers. Where it is necessary to make modifications to our
equipment to make it fully interchangeable, full design calculations will be
carried out to check that the design meets the design criteria for suspension
equipment
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WEDGE TYPE CAPELS
The wedge type Capel is used many countries for capping wire ropes. The Capel works on the
principle of self tightening action of two interlocking tapered wedges acting on the wire rope to grip ad
hold the wire firmly in place.
The Capel assembly consists of the following items:
 A pair of interlocking wedges that is profiled to suit the rope diameter.
 The Capel frame which is shaped like a large tuning fork.
 Capel bands, which fit around and enclose the Capel frame and a rope
end safety block
The profiled wedges are placed on opposites sides of the rope. A gap is left
between the wedges so that the wedges are tightened and can compress that
wire rope and grip more tightly. The Capel frame is placed around the wedges.
The wedges are secured firmly in place by driving the Capel bands along the
Capel frame. The Capel bands also use a wedging action to squeeze the limbs
of the Capel frame hard against the interlocking wedges. The rope end safety
block is mounted on the end of the wire rope with the use of white metal (or
resin). If the rope should slip, the safety block will grip the interlocking wedges
more tightly into the Capel frame then exert greater grip on the wire rope.
The wedge type Capel can be used with stranded and locked coil ropes. Capel
wedges are stamped with the matching rope type and size. It is a good idea,
when buying new winding rope to request a 2 metre (6 foot) sample length of
wire rope for reference purposes and for machining the wedge profiles. The
rope sample should be kept for the life of the rope in case any queries should
arise.
When ordering wedge type capels please specify:




Reliance wedge type Capel part number
Rope type and size
Safe working static load of the Capel
Engineering details of connecting links.
Under no circumstances should a Capel be fitted to a wire rope without the
white metal (or resin) safety block. Also, it is considered bad practice to use their
interlocking wedges and Capel bands from another Capel. Capel component are
custom made, and the Capel should be considered an integral part.
Reliance Hexham engineers have endeavoured to design the Reliance product
range to be interchangeable with suspension equipment supplied by the other
manufacturers. Should you require a size not shown in the table, or should the
size for the fitting not match your fitting, please let us know. In many instances,
custom designed fittings can be supplied or modifications made to our standard
range. Should it be necessary to supply non-standard design, we will as a
matter of course supply full design calculations in addition to our normal quality
assurance checks and certification.
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WHITE METAL (OR RESIN) FILLED WIRE ROPE SOCKETS
Reliance Hexham white metal (or resin) filled wire rope sockets conform to the internationally
accepted National Board specification No. 465:1965 British Standard BS463 Part 2:1970 for wire
rope socket. White metal (or resin) filled wire rope sockets are used on both hoist and balance ropes.
White metal (or resin) filled wire rope sockets are capped by pouring molten white metal (or resin)
into specially prepared wire rope socket. Because of danger of combustions, white metal (or resin)
filled wire rope sockets cannot be capped in gaseous upcast shafts.
Capping a wire rope with a white metal (or resin) filled wire rope socket is a specialist job and proper
care must be taken to ensure a sound connection. The white metal (or resin) must be the correct
chemical composition, and heated to the correct temperature. The socket must be pre-heated
uniformly to the correct temperature. Careful cleaning of wires throughout the brush is essential. The
socket must be the correct size for the wire rope. We recommend the British National Coal Board
publication Ropeman’s Handbook, Clark Constable Ltd Edinburgh, 1980 as a reference for capping
white metal (or resin) filled wire rope sockets.
The range of Reliance Hexham white metal (or resin) filled wire sockets is shown on the
accompanying table.
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DETACHING HOOKS
A detaching hook is a statutory safety device used in drum winding installations. Its purpose is to
detach the mine conveyance from the hoisting rope in the event of the winder failing to stop in the
headframe and overwinding. For installations which do not incorporate an overwind safety catch, the
detaching hook has the additional function of catching and supporting the conveyance in the
headframe.
Reliance Hexham manufactures the two styles of detaching hooks: Humble and King. The two hooks
operate on similar principles using a catch plate.
A detaching hook is activated as it passes through a bell or catch plate. The shear pin, which holds
the detaching hook in the closed position, is sheared. The detaching hook is forced open, and locked
in the open position. This releases the wire rope from the detaching hook. The hook and conveyance
falls back under gravity, but is caught by the ball or catch plate.
All Reliance Hexham hooks are carefully designed for static and dynamic load conditions with a static
factor of safety of at least 10 to 1 and a fatigue reserve factor of 1:3. The hooks are manufactured
from approved 1.5% manganese or nickel chrome molybdenum alloy steel, and heat treated in
accordance with national mining standards. They are designed to operate automatically in event of
overwind, and withstand the substantial fall-back stresses that follow hook detachment. All hooks are
designed so that they can easily be reset to the locked position and released from the catch plate or
bell.
Although the detaching hook may never be called to operation in a real life situation. Careful thought
must go into the selection of the hook and associated suspension equipment components. It is
important when ordering a detaching hook to check out clearances and ensure other suspension
fittings, and winder head frame structures do not foul the hooks operation. When ordering detaching
hooks, please specify the type of detaching hook which are King, Improved King, Humble, Improved
Humble.
Please also specify the following;
 Reliance Hexham part number of the detaching hook
 The safe working static load
 Engineering details showing
 A general arrangement of suspension equipment above and below the hook
 Pin diameter of the mating fitting above and below the detaching hook
 Location of the sheave wheel with respect to the catch plate or bell.
 Diameter of catch plate hole, and centre distance of mounting holes
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KING STYLE DETACHING HOOK
The King style detaching hook is made with two inner plates and two outer plates. The hook is
designed such that the inner plates take the load.
The hook region in the larger capacity hooks is thickened to improve the hooks carrying capacity
without necessarily increasing the hooks overall size.
The King type of hook is designed for use with catch plates. The load ratings and key dimensions are
shown in the accompanying tables.
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HUMBLE TYPE DETACHING HOOK
The Humble style detaching hook is made with two inner plates and two outer plates. The two outer
plates are connected are their base with a spacer piece. The two inner plates are shaped like a hook
and are connected together scissor fashion with a pin that passes through the outer and inner plates.
Both the inner and outer plates are designed to take the load. The load is transferred from the hook
end of the inner plates to the hinge pin and then to the outer plates. The outer plates transfer the load
to a connecting shackle or chase block.
The hook region in the larger capacity hooks is thickened to improve the hooks carrying load capacity
without necessarily increasing the hooks overall size.
The Humble type hook is designed for use with catch plates. The load ratings and key dimensions
are shown in the accompanying tables.
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SECTION 2 – MULTI ROPE SUSPENSION SYSTEMS
INTRODUCTION
The first four rope friction winder in the world was installed in 1947, and since that time there has
been continual evolution in design. There are different suspension equipment considerations with
multi rope friction winders to that of single rope suspension systems for single and double drum
winders.
The terminal rope connection is normally a wedge type Capel, a thimble Capel or socket. The wedge
type Capel has been used for many years and its use is well accepted in the mining industry. The
thimble Capel has not been used as extensively as wedge type capels, but it is gaining popular
support because of its ease in recapping and tensioning.
The suspension equipment is connected directly to the conveyance with purpose designed links.
Regulations vary from country to country and it may be necessary to recap the rope and insert a
chase block link to make up for the rope piece cut from the end of the rope. Should the rope have a
statutory life of two years and it must be recapped every six months, then three right angle chase
block links will be required over the life of the rope. Other
country’s regulations are less severe.
Equal tension should be maintained in each of the ropes. This
requires some means of measuring the rope tension and some
means of making fine adjustments in the rope. There are a
number of systems available for adjusting the rope tension.
These range from simple adjustable swinging plate links, and
telescopic links with hydraulic adjustment.
The relative rope tension in each rope can be determined by
stopping the conveyance marking the rope with pencil on chalk,
starting the winder and moving the conveyance for a distance of
two to three drum revolutions. The relative position of the pencil
marks indicates the tension in each rope. Alternatively
suspension links with strain gauges inserted in the link or
suspension equipment load cells may be used to measure the
relative tension in each wire rope.
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accepted National Coal Board Specification No. 465:1965 and British Standard BS463 Part 2:1970
for wire rope sockets. White metal (or resin) filled wire rope sockets are used on both hoist and
balance ropes.
into the specially prepared wire rope socket. Because of danger of combustion, white metal (or resin)
chemical composition, and heated to the correct temperature. The socket must be pre-heated
uniformly to the correct temperature. Careful cleaning of the wires throughout the brush is essential/
the socket must be the correct size for the wire rope. We recommend the British National Coal Board
publication Ropeman’s Handbook. Clark Constable Ltd, Edinburgh, 1980 as a reference for capping
white metal (or resin) filled wire rope sockets.
The range of Reliance Hexham white metal (or resin) filled wire rope sockets is shown in the
accompanying table. All Reliance Hexham white metal (or resin) filled wire rope sockets are
machined from solid 1.5% manganese steel billets.
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THIMBLE CAPEL
The thimble Capel is being used more widely with the multi-rope friction
winders. The main advantage of thimble capels over wedge capels is in
rope capping and rope tensioning. With wedge capels, the rope must be
cut to length before capping. With thimble capels, the rope can be cut after
the rope is capped. This avoids the possibility of cutting too much, or too
little off the end of the rope. Thimble Capel also eliminate the for expensive
adjustment linkage for accommodating rope stretch on friction winding
hoist ropes.
The thimble works on the principle of self tightening wedges gripping the
wire rope. The greater the load on the wire rope, the greater the thimble
Capel grips on the wire rope. The wire rope is laid around the thimble and
pulled hard into two wedge shoes. The vertical shoe ensures the rope
centre-line coincides with the centre of the Capel connecting pin to
eliminate bending stresses. The other shoe is pivoted to ensure it lines up
with the thimble and grips the wire rope along its whole length.
Adjusting the Capel is a straight forward process. An adjustment whole is
drilled through the outer plates and through the thimble. The thimble is
pulled back to give clearance at the wedges and a bar is inserted through
the outer plates and thimble. The wire rope may then be pulled around the
thimble for rope capping and tensioning.
The thimble Capel, however, is not used on single rope drum winder
installations. It is too wide to pass through the detaching hook catch plate
or bell.
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FINE ADJUSTMENT LINKAGES
In multi rope suspension systems, the load should be equally distributed amongst the ropes.
This can be done with a combination of coarse and fine adjustment linkages. Right angle chase
blocks can be used for coarse adjustment, and fine adjustment can be accomplished with a fine
adjustment linkage.
Fine adjustment linkages consist of an upper and lower sliding member, and a number of adjustment
blocks. The fine adjustment linkage is normally packed between the rope terminal connection and the
conveyance.
Load cells may be installed in suitable locations to measure the tension in each rope. The rope
tension is adjusted by inserting or removing adjustment blocks in the upper and lower sliding
members of the fine adjustment linkage.
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SECTION 3 – BALANCE ROPE
SUSPENSION SYSTEMS
INTRODUCTION
The balance rope is an integral part of a friction winder and the same
care and attention to detail must be applied to the selection of
suspension equipment as applied to head rope suspension equipment.
The rope terminal equipment is usually an inverted wedge type Capel,
a white metal (or resin)led socket or a rope thimble. Reliance Hexham
developed inverted wedge Capel as an alternative to the wedge type
Capel for balance roped systems. The inverted wedge Capel has the
advantage that the Capel Frame splays outwards, reducing the
chance of the bands being dislodged by falling objects or vibration.
The thimble Capel cannot be used with all types of ropes, but it has
the advantage that the rope can be easily capped.
It is usual practice to connect a right angled chase block link and a
wire rope swivel to the Capel, thimble or socket. The swivel takes the
twist out of the rope as the conveyance moves up and down the shaft.
The right angle chase block provides an added degree of freedom and
helps prevent the possibility of the swivel spindle binding on the swivel
collar. Lubrication of the swivel is difficult due to the location of the
swivel and the placement of the swivel grease nipples. Swivels are
normally designed with the spindle hanging downwards. This helped
eliminate the ingress of dirt and moisture into the body of the swivel.
Reliance Hexham provides swivels with either female or male end
connection. Careful selection of the swivel end connection often
eliminates the need for additional linkage members.
The swivel is usually connecting to the underside of the conveyance
with a purposed designed link.
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INVERTED WEDGE CAPELS
The inverted wedge Capel is similar to the tapered wedge Capel. It has the same component parts,
and works on the same principle of self tightening action of tapered wedges acting on the wire rope.
The Capel is designed for use with balance ropes. The Capel arms splay outwards rather than
inwards. The Capel is tightened onto the rope by driving the Capel bands towards the end of the
Capel arms rather than towards the Capel eye.
With balance ropes, the Capel is fastened to the underside of the cage, skip or counterweight. The
Capel arms hand downwards. The inverted wedge Capel gives an added measure of safety over
tapered wedge capels because the Capel bands are less likely to be loosened by falling objects or
vibration.
When ordering inverted wedge capels, please specify the following information:




Reliance inverted wedge Capel part number
Rope type and size
Safe working static load on Capel
Engineering details of connecting links
Under no circumstances should a Capel be fitted to the wire rope without the safety clamp.
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accepted Nation Coal Board specification No. 465:1965 and British Standard BS463 Part 2:1970 for
wire rope sockets. White metal (or resin) filled wire rope sockets are used on both hoist and balance
ropes.
into the specially prepared wire rope socket. Because of danger of combustion, white metal (or resin)
chemical composition, and heated to the correct temperature. Careful cleaning of the wires
throughout the brush is essential. The socket must be the correct size for the wire rope. We
recommend the British National Coal Board publication Ropeman’s Handbook ,’,Clark Constable Ltd,
Edinburgh, 1980 as a reference for capping white metal (or resin) filled wire rope sockets.
The range of Reliance Hexham white metal (or resin) filled wire rope sockets is shown in the
accompanying table. All Reliance Hexham white metal (or resin) filled wire rope sockets are
machined from solid 1.5% manganese steel billets.
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WIRE ROPE THIMBLES
Wire rope thimbles are suitable terminal fitting for capping round, multi-strand balance ropes. The
main advantage of wire rope thimble is that the rope does not have to be cut to length before capping
the rope.
To cap the balance rope, the free end of the rope is bent around the thimble, then laid back along the
working rope and adequately secured by a number of four bolt clamps, and an apex clamp at thimble
apex.
The whole assembly is suspended beneath the cage, skip or counterweight by purpose designed
suspension links and wire rope swivel.
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WIRE ROPE SWIVELS
Wire rope swivels are normally used with balance rope systems. They are used for taking the twist
out of the rope as the conveyance moves up and down the shaft. The swivel must be designed not
only for the changing suspended weight of the wire rope handing from the swivel, but for the correct
starting torque on the swivel bearings. Swivel bearings should not be too tight, or too free. The
uncontrolled use of swivels for releasing twist is considered bad practice. Swivels must be properly
maintained and kept greased to ensure the swivel does not seize.
The swivel is protected against the ingress of water and foreign matter by a labyrinth seal. A grease
nipple is fitted to the top of the swivel for easy greasing of the heavy duty thrust bearing.
Swivels are available with make (tongue) or female (clevis) ends. Some swivels are designed to take
the thrust load in one direction only, and designed to hang in one direction to stop the ingress of dirt
and moisture. They cannot be end-for-ended. The top of the swivel must always be mounted in the
up position. When buying swivels, please check the end connections are correct if there is a female
connection at one end and a male connection at the other end.
It is good practice to fit a right angle chase block to the bottom of the swivel to minimise and lateral
load on the swivel spindle causing it to bind or rub against the swivel collar.
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SECTION 4 – MANOEUVRING & GUIDE ROPE EQUIPMENT
INTRODUCTION
One of the difficulties of wire rope is manoeuvring the rope onto the position
and tensioning the rope. The Reliance Hexham range of wedge suspension
glands were designed to make it much easier to move, reposition,
manoeuvre and tension locked coil and stranded wire rope.
The wedge suspension glands may be used as a permanent rope anchor
fitting, or may be used for just manoeuvring and pre-tensioning the wire rope
while the permanent fitting is installed in position.
In mining applications, the wedge suspension gland may be used for
manoeuvring hoist, balance, guide and rubbing ropes during installation
and maintenance. Wire rope or chain pullers may be connected by a
shackle t the wedge suspension to pull and tension the wire rope into the
correct position.
Where the wedge suspension glands are used for suspending guide, and
rubbing ropes, the gland boxes have a drilled rectangular base for bolting the
wedge suspension gland permanently in position. The wedge suspension
gland can also be fitted with a spherical seat to allow for misalignment
between the wire rope and the gland. The spherically seated gland is very
suitable for rubbing ropes. The spherical seat allows the rubbing rope
to be turned periodically to even the wear around the ropes surface.
Wedge suspension glands have been used in many applications outside
the mining industry. The glands have been used for erecting large tower
structures, for securing mooring cables on North Sea oil drilling rigs and
building large suspension bridges. In fact they can be used in any application
where larger diameter wire rope is used.
The Reliance Hexham wedge suspension glands are built for rugged use. The
glands are generously sized and machined from steel billet.
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WEDGE SUSPENSION GLANDS
The Reliance wedge suspension glands are used for suspending, anchoring, manoeuvring and
tensioning wire rope. The wedge suspension gland work on the principle of self tightening wedges
acting on the wire rope to grip and hold the wire rope firmly in place.
The wedge suspension gland consists of gland box and two interlocking tapered wedges profiled to
suit the wire rope. The wedge suspension gland may also be fitted with a pair of shackles for the
purpose of moving and manoeuvring the wire rope more easily. The wedge suspension gland can
have a drilled base so that it can be permanently bolted in position, or it may have a separate
spherical seated base to accommodate misalignment between the gland and the wire rope.
The installation of wedge suspension glands is very simple. The gland box halves are placed on both
sides of the wire rope and bolted together at the required position. The two interlocking tapered
wedges are placed around the rope and slid into gland box. They are then driven into gland box until
they are tight in the gland box, and firmly grip the rope. At least two 2 bolt rope safety clamps should
be bolted at right angles to one another above the wedges. The purpose of these clamps is to pull the
wedges tighter into the rope if the rope starts to slip through the gland. Finally to visually check for
slip, mount a tell tale clamp on the rope but separated by a short distance from the safety rope
clamps. For a detailed description on how to assemble the wedge suspension glands, we
recommend you refer to the Ropeman’s Handbook, Clark Constable Ltd, Edinburgh, 1980.
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SECTION 5 – SPECIALISED SHAFT SINKING EQUIPMENT
INTRODUCTION
The conventional shaft sinking equipment consists of winding rope Capel, detaching hook,
suspension equipment links, riding lifting cone, sinking rider and clivvy hook.
The winding rope Capel may be wedge type Capel, a white metal (or resin)led wire rope socket and if
the rope suitable, an inserted cone and tail socket.
The detaching hook may be one of the two accepted types: King and Humble. In some countries,
however, detaching hooks are not allowed for shaft sinking purposes. There is greater possibility in
shaft sinking operations that the detaching hook could be knocked, thereby shearing its copper shear
pin and opening the hook. This would then allow the kibble to fall, with the potential of serious
damage and injury.
The lifting cone is designed to engage the sinking rider assembly and lift the sinking rider. This
assembly is designed to guide the kibble smoothly up the shaft.
The clivvy hook is designed with a special locking tongue to prevent the possibility of the kibble
separating from the hook.
The Reliance Hexham jack catch socket was designed to overcome the objections of the detaching
hook. It is meant to replace the Capel and the detaching hook. This allows it to keep the dead weight
down of the suspension equipment fittings and so increase the kibble load.
As a safety device, the jack catches socket is designed that if an overwind should occur, the jack
catch socket will ride up and through a series of jack catches and strike the crash beam. Should the
winding rope break or should the winder suddenly drop the load, the jack catch socket is designed to
fall back onto the jack catches, and be supported by the jack catch collar.
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JACK CATCH SOCKETS
The jack catch socket has been specially designed for shaft sinking operations. In the event of an
overwind, the jack catch socket with ride up through the jack catches and strike the crash beam.
Should the winder then drop the load to should the wire rope break, the jack catch socket will drop
back onto the jack catches. The kibble, chains, lifting cone and suspension equipment will be held by
the collar of the jack catch socket.
The jack catch socket eliminates some of the suspension equipment fittings normally used in shaft
sinking operations. This reduces the dead weight of suspension equipment fittings, and allows
operators to increase the kibble payload.
The socket is a white metal (or resin)led filled socket and the same capping procedures that are used
for white metal (or resin)led filled sockets are used with the jack catch socket.
Page 47 of 51
Page 48 of 51
SECTION 6 – MISCELLANEOUS EQUIPMENT
CAGES & SKIPS
Reliance Hexham can supply a range of cages and skip designed to suit most applications. The
cages range from simple two man cage to 80 man, double deck men and material cage. The cages
are designed for lightness and strength using high strength low alloy steels, and if permitted
underground, aluminium panels can be used for added lightness.
An essential part of the cages is the cage gripper gear mechanism that is designed to grip the steel
or timber guides when the load is taken off the winder. This normally consists of drawbar, coil spring
mechanism and shafts running out to the grippers mounted on opposite sides of the cage.
Page 49 of 51
Page 50 of 51
CONTACT DETAILS
100 Old Maitland Rd, HEXHAM NSW 2322
AUSTRALIA
PO Box 489, MAYFIELD NSW 2304
AUSTRALIA
Tel: +61 2 4964 8500
Fax: +61 2 4964 8152
www.reliancehexham.com.au
Sales – [email protected]
Accounts – [email protected]
Page 51 of 51

suspension equipment catalogue

Transcription

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