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Патент USA US3097745

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July 16, 1963
w. E. GOODMAN ETA].
3,097,737
RESILIENT BELT TRAINING TROUGHING IDLER ASSEMBLY
Filed July 18, 1960
2 Sheets-Sheet 1
IN VIAIN TOR.
ll/i/?'am I. 60002.72”
Key A' [0 Presfz ,
July 15, 1963
‘w. E. GOODMAN ETAL
3,097,737
RESILIENT BELT TRAININGRTROUGHING IDLER ASSEMBLY
Filed July 18, 1960
2 Sheets-Sheet 2
INVEN TOR.
I ll/i/?km
Goodman
(0y I Low/‘est!’
United States Patent 0 "ice
3,097,737.
1
1
Patented July 16, 1963
2
assemblies indicated generally at 12 in FLIGURE l. The
3,097,737
resilient shaft on which the individual rollers are jour
RESILIENT BELT TRAINING TROUGHING
naled is pie-bowed and tends to retain this position or
IDLER ASSEMBLY
con?guration. Forces may be exerted on the shaft to
William E. Goodman and Roy F. Lo Presti, Chicago, Ill.,
change its position but once such forces are withdrawn,
assignors to Goodman Manufacturing Company, Chi
cago, Iil., a corporation of Illinois
then the resilient material returns or springs back to its
Filed July 18, 1960, Ser. No. 43,599
original con?guration. As is also seen in FIGURE 1, cer
1 Claim. (Cl. 198-192)
tain of the support standards 3 carry return rollers 13
rotatably supported on ears 14 secured by welding or
This invention relates generally to rope sideframe belt 10 the like to the tubes 5 of the support standards. A con
conveyors and more particularly to a troughing idler as
sembly having a plurality of rollers carried by a resilient,
substantially non-rotatable shaft which can be oriented
to automatically train the belt solely in response to pas
sage of a ‘belt over the assembly.
Accordingly, one of the primary objects of the invention
is to provide a rope sidefname conveyor having a plurality
of ‘belt training troughin-g idler assemblies, each assembly
including a plurality of rollers carrier by a single, non
rotatable resilient shaft.
Another object is to provide a rope sideframe conveyor
troughing idler assembly havinga plurality of belt sup
veyor ‘belt 15 including a carrying reach 16 and a return
reach ‘17 is supported by the troughing roller assemblies
and the return rollers, respectively.
Each of the troughing roller assemblies is identical in
construction and only one will be described in pointing
out the unique features of this invention. As best seen in
FIGURES 2, 3 and 4, each troughing roller assembly is
connected to the rope sideframes by a pair of rope en
gaging roller assembly mountings 20.
Each mounting 20 includes a rope engaging portion
formed by a longitudinally extending rope seat 21 of
substantial length and a downwardly and outwardly ex
porting rollers carried by a resilient shaft which will not
tending ?ange 22. An internally threaded aperture 23 is
bow outwardly downstream in response to passage of a
formed in the outwardly extending lip 24 of the ?ange.
belt over the assembly to thereby provide good belt train 25 A clamp 25 having an aperture in its bottom- flange 26
ing characteristics.
is forced into engagement with a corresponding rope by
Still another obiect is to provide unique means ‘for sus
a screw 27.
pending ‘an above described troughing idler assembly ‘from.
A pair of generally vertical webs 32, 33 are secured, as
the rope sideframes which provides positive placement of
by welding, to the downwardly extending flanges 22. A
the assembly in a downstream training position.
30 pair of sleeves 34, 35 are secured to the upper edge of
Another object is to provide a pre~bowed resilient shaft
the webs by any suitable means. In this instance, the
having a plurality of rollers thereon and providing means
sleeves have been formed as separate elements and thus
for canting the pre~bowed resilient shaft into atraining
secured to the webs, but it would also be possible to
position.
form the sleeves and webs integrally.
These and other objects of this invention will be found 35
As is best seen in FIGURE 3, the webs and sleeves are
in the following speci?cation and claims wherein like
secured to the rope seats 21 at angles canted from the
reference numerals identify like parts throughout.
perpendicular with respect to the wire ropes :10‘ and 11.
The invention is shown somewhat diagrammatically
The reason for this construction will be hereinafter ex
in the ‘drawings wherein:
plained.
‘FIGURE 1 is a side elevation of a portion of a rope 40
A pair of tubular liners 316, only one of which is shown
sideframe conveyor having troughing idler assemblies em
in the drawings, are received within and project outwardly
bodying this invention,
from the sleeves. Each liner terminates in a ?ared end
cap, the caps being indicated at 37 and '38.
of FIGURE 1,
A resilient shaft 39 is journaled at its ends in the sleeve
1FIGURE 3 is a view taken substantially along line 3—3 45 and liner assembly. The ends of the shaft extend out
of FIGURE 2, and
wardly of the sleeves and are threaded as at 40, 141 to re
FIGURE 2 is a view taken substantially along line 2——2
FIGURE 4 is a view taken substantially along line 4—-4
of FIGURE 3 showing the roller assembly rope mount
ing means in detail.
A portion of a rope sideframe conveyor is shown gen
erally at 2 in FIGURE 1. The conveyor includes a
series of longitudinally aligned, generally regularly spaced
support standards 3 which maintain a pair of rope side
frames in generally co-planar, generally parallel relation
ship along the conveying course.
Each support standard 3 includes a pair of ?at ground
ceive washers 42, 43 and anchoring nuts 44, 45.
The ends of the shaft are canted from a perpendicular
to the rope sideframes. The amount of cant is governed
by the angle at which the webs are secured to the rope
clamps.
Mounted for rotation on the shaft 39 at regularly
spaced intervals therealong are identical rollers 46- of
55 resilient material such as rubber or the like.
Each of the
rollers is formed about a center bearing hub 47. Lateral
movement of the roller along the hub is prevented by a
circular key 48' formed integrally with the hub and ex
tending into the roller.
conventional means such as welding or the like. The
Nylon spacers 49 maintain the center hubs, and con
tubes may be connected together by a cross bar to form a 60 sequently the rollers, in spaced relationship along the
conventional H-frarne. Pipes '6 carrying rope seats 7 at
shaft 39. Rubber sleeves 50 having beaded portions 51
their upper extremities are vertically adjustable in the
surround the spacers. The sleeves act as dust and dirt
tubes 5. The precise con?guration of each of the H
seals to keep dust and abrasive material away from the
frame support standards and the pipe adjusting means is
rotating bearing surfaces between the hubs and shaft.
conventional a detailed description is not considered nec 65
At each end of the outermost rollers 46, the caps 37
essary to an understanding of the invention.
and 38 overlie a corresponding end of ‘a bearing to center
A pair of spaced wire ropes .10‘ and 1-1 are received in
the series of rollers and spacers on the shaft and provide
corresponding rope seats 7 and secured thereto by con
outer dust and dirt seals.
ventional means.
The use, operation and function of this invention are
Suspended from the wire ropes 10‘ and 11 at somewhat
as follows:
regularly spaced intervals are preabowed troughing roller
A rope sideframe conveyor may be set up in many
engaging base plates 4 having tubes 5 extending upwardly
therefrom. The tubes are secured to the base plates by
3,097,737
4
a
locations under widely varying conditions to provide a
highly ?exible unit for carrying bulk materials such as
coal or the like.
This novel combination of rope side
frames supporting a series of small rollers carried by pre
boWed-resilient shafts provides a conveyor which troughs
as a function of the weight carried and also provides uni
form belt contact by the rollers, decreasing belt wear and
equalizing load stresses.
In addition, as is diagrammatically shown in FIGURE
3, the webs 32 and 33 ‘and their associated sleeves 34 10
and 35 ‘are initially secured to the ?anged rope seats 21
at a rearwardly canted angle to the direction of conveyor
belt travel (shown by the arrow A in FIGURE 3).
Since the rope seats 21 are of a considerable length, any
tendency of the ropes 10, and consequently the sleeves 15
34 and 35, to twist responsive to forces exerted on the
ropes from the assembly is considerably lessened. The
outer rollers 46 exert a force on the belt tending to direct
it toward the center of the roller assembly. The directions
in which the belt training forces are exerted are indicated
by the arrows B in FIGURE 3.
As the load on the carrying reach ‘16 of the conveyor
belt increases, the resilient shaft bends to allow the rollers
to assume the position shown in dotted lines in FIGURE
2. This permits a pendulum effect to occur in the ?exible 25
roller- :ass'embly and the canted effect is lessened to a cer
tain degree with a consequent lessening of the training
effect of the outer rollers 46.
This, however, is not a
problem since a heavily loaded belt has lesser detraining
30
tendencies.
At all times the individual bearings 47 and rollers 46
rotate on the dead shaft along with the spacers 49 which
maintain proper spacing therebetween. The rubber sleeves
50 also rotate in unison with the bearing hubs and spacers.
The individual roller assemblies can be easily removed 35
from their mountings in the sleeves 34 and 35 for re
placement by a whole new shaft and roller unit.
The foregoing description is intended to be illustrative
only and not de?nitive, and accordingly, the invention 40
should be limited only by the scope of the appended
claim.
We claim:
A belt training troughing idler assembly especially
adapted for downhill conveying runs, said troughing idler 45
assembly including, in combination,
a uniform diameter, solid shaft,
said shaft extending from end to end of the idler as
sembly,
a plurality of rollers carried by the shaft, said rollers
being rotatable with respect to the shaft,
structure for connecting the shaft, by its end portions,
to the wire rope side frames of a Wire rope conveyor,
said structure being effective to position the end por
tions of the shaft downstream with respect to the
mid-portion of the shaft in an unloaded condition,
the mid-portion of said shaft, in a belt-supporting, un
loaded condition, thereby lying,
?rstly, in an upstream, belt training position, with re
spect to a line substantially perpendicular to the
direction of belt travel which passes through the
points of connection of the end portions of the shaft
to the wire ropes, and,
secondly, a substantial distance below said line, said
downward displacement being greater than that due
to the weight of (the rollers and belt alone,
the downward displacement being su?icient in an un
loaded condition, to provide contact over the entire
width of a belt which may be supported by the rollers
whereby good belt-roller contact is provided through
out the entire width of the conveyor belt,
said shaft being resilient, and pre~bowed, over at least
its belt contacting length to thereby “enable the end
portions of the shaft to move toward and away from
one another in a direction transverse to the convey
in‘’ run in response to variations in load,
said connecting means including
a pair of tubular liners, one at each end portion of the
shaft, the shaft being received in the liners,
a pair of rope clamp assemblies, one at each end of
the troughing idler assembly,
each rope clamp assembly including a rope clamp, a
web extending therefrom, 'and a sleeve carried by the
web,
the tubular liner being received in the sleeve, and
a threaded fastener received on the end of the shaft
which prevents longitudinal movement of the shaft
with respect to the linear and sleeve,
said connecting means lying transversely outwardly
from the end rollers.
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,833,179
2,880,851
2,942,721
2,948,384
Robins ______________ __ Nov. 24,
Salmons ______________ __ Apr. 7,
Kidd et a1. ___________ __ June 28,
Pate _________________ __ Aug. 9,
1931
1959
1960
1960‘
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