close

Вход

Забыли?

вход по аккаунту

?

код для вставки
June 1, 1948.
I
M. s. 'GROH
'
OPPOSED ROLL CRUSHER WITH FEED MEA?S
Filed Oct. 28, 1944
2,442,740
_
2 Sheets-Sheet l v v
INVENTEIR
M5, E-RU H, -.
.
Patented June 1, 1948
2,442,74
UNETED STATES
ATENT OFFICE
2,442,740
OPPOSED ROLL CRUSHER WITH
FEED llIEANS
Melvin S. Groh, Preston, Ontario, Canada
Application October 28, 1944, Serial No. 560,747
In Canada December 24, 1942
4 Claims. (Cl. 241-224)
2
1
This invention relates to crushing mechanism
particularly for grain and cereals.
Crushers for' grain and cereals including a pair
of rotating rolls between which the material to
be crushed is fed have been used for a consider
able period of time. These structures usually in
volve driven rolls and therefore require consider
able construction including gear trains and usu
ally require mechanically driven feeding devices.
Thus, such structures involve a considerable
number of parts with a corresponding cost,
whereas it is possible to produce a crusher which
will e?iciently meet requirements while providing
In the drawings—
.
Fig. l is a longitudinal section taken through a
crusher according to the present invention and
showing the general arrangement of parts.
Fig. 2 is a transverse section taken on the line
2_2 of Fig. 1.
Fig. 3 is a perspective view of the spreader used
in conjunction with the crushing rolls.
Fig. 4 is a detailed view partly in section of the
valve or damper used for controlling the amount
of material fed to the crushing rolls; and
Figs. 5 and. 6 are perspective details of the two
essential parts of the valve and operating means
therefor.
a much simpler mechanism and at lower cost.
It is, therefore, an object of the present inven 15 Referring to the drawings, A indicates the
crusher as a whole having a suitable casing Iii
tion to provide a simpli?ed type of grain‘ or cereal
supported in any suitable Way and fed’ from a
crusher wherein the parts are few and the crush
hopper II through an inlet opening I2. ‘ Within
ing operation is effected between rolls, one of
the casing are mounted two crushing rolls B_ and
which is .driven through the medium of the ma
terial being crushed.
20 C carried on the shafts l3 and M respectively,
suitably journalled in the frame on ball bearing
A still further object of the invention is to pro
races I5 so that they will rotate very readily. The
vide a construction of this kind in which the
roll B is a driven roll driven by any suitable
grain is fed from a hopper disposed in close prox
means such as a driving belt H. The roller C is
imity to the surface of one of the rolls, the lat
ter forming the agitating means for feeding the 25 an idler roll spaced slightly from the driven roll
B and normally urged towards the driven roll
grain or material into the crusher in combination
by spring means such as the leaf spring l8 press
with a simple shut-off device, thus controlling the
ing against the shoes or slides I9 which may be
grain ?ow by a simpli?ed combination.
disposed in a suitable guideway 26 (see Fig. '1),
With these and other objects in view, the in
vention generally comprises a crusher for grain, 30 the shoes or slides pressing against the journalled
boxes of the shaft I4. The spring [8 is placed
cereal or the like including a casing having an
under compression by any suitable adjusting
inlet opening, a pair of crusher rolls rotatably
means such as a screw 2| threaded through a wall
mounted in the casing in parallel relation to one
of the casing. As noted the mounting is such
another, means for driving one of said rolls, the
other being an idler, the mechanism including 35 that the rolls are slightly spaced apart as here
tofore mentioned and the idler roll C may be re
manually operable means for causing rotation of
tracted from the roll B to a limited extent co
the idler roll, while the material to be crushed
inciding with the spacing between the casing and
fed through said inlet opening forms a friction
the shaft journals. The driven roll B likewise
driving medium for continuing the rotation of
may be adjusted to and away from the idler roll
the idler roll through the rotation of the driven
by suitable means such as the screw threaded
roll. It also includes such features as the posi
bolts 22 threaded in the casing Ill.
tiom'ng of the inlet opening directly above and in
The shaft I4 of the idler roll carries on one
close proximity to the driven roll and a sliding
end a manually operable member 23. This is em
valve for controlling the size of the inlet opening " ployed for starting purposes and as the roll B
and cooperating with the driven roll which in
is rotated by its power drive and material to be
combination with the sliding valve forms a means
crushed is fed to the rolls, the manually operable
for agitating and controlling the ?ow of the ma
member 23 may be rotated in opposite direction
terial into the crusher. A simple form of spread
to the roll B and the material passing‘ between
ing means is also included for uniformly distri 50 these rolls forms a frictional means for then caus
buting the material to the rolls.
ing rotation of the idler roll C by means of the
The invention will be clearly understood by
driven roll B. The ball bearings permit ready
reference to the following detailed speci?cation
manual rotation of roll C and this roll will then
be caused to be driven at the same speed as the
taken in conjunction with the acCqmpanying
drawings.
.
'
roll B after the frictional connection ‘between
2,442,740
the two by means of the material being crushed.
In contra distinction to the use of rotary agi
tators or special agitating means for assuring that
the materiaLto be crushed is fed between the
4
ingly I am able to produce a simpli?ed efficient
machine economically.
What I claim as my invention is:
1. A crusher for grains, cereal or the like com
prising a casing having an inlet opening, a pair
of crusher rolls rotatably mounted in the casing
in parallel relation to one another, means for
close proximity thereto. In that opening a for
driving one of said rolls, the other being an idler,
wardly inclined ba?le or guide 24 is disposed to
manually
operable means for causing rotation of
guide the material towards the center point of
the roll and the roll, therefore, forms a means 10 the idler roll, the material to be crushed fed
through said inlet opening forming a friction
of agitating the material in combination with a
drive medium for continuing the rotation of the
slide valve or damper 25 which is mounted on
idler roll through the rotation of the driven roll,
the frame and designed to close oif the inlet open
said inlet opening being disposed directly above
ing from the roll B where desired. Thus the roll B
forms the agitating means and is designed to feed 15 the driven roll and spaced in close proximity
a greater or lesser quantity of material to be ~ thereto, a slide valve controlling the inlet open
ing and having its free edge disposed towards the
ground according to the positioning of the slide
rolls efficiently, I mount the ‘hopper H directly
above the driven roll B and spaced in relatively
valve or damper 25.
.
,
driven roll and adjustable with respect thereto,
said driving roll and slide valve forming a means
The slide valve 25 is designed to be slid longi
tudinally of the machine towards and away from 20 for agitating the material in the inlet opening
and for controlling the ?ow of said material, and
the guide plate 24. This may be accomplished
a spreading member disposed between said rolls
by any suitable means, that illustrated in, the
below said valve and having inclined surfaces
present embodiment of my development taking
designed 'to guide and spread the in?owing ma
the form of a recess 26 in part of the valve or
damper, along one side of which is a toothed rack 25 terial along the length of said rolls.
2. A crusher for grain, cereal or the like com
21, the recess being designed to receive the quad
rant gear 28 projecting from the operating mem
ber 29, the gear engaging the rack and causing
sliding movement of the valve or damper upon
rotation of the operating member 29.
The slide valve 25 is tapered and downwardly
inclined as at 30 so as to meet the lower end of
the guide plate 24 at the upper periphery of the
roller B and provides an opening of progres
prising a casing having an inlet opening, a pair
of crusher rolls rotatably mounted in the casing
in parallel relation to one another, means for
driving said rolls, said inlet opening being dis
posed directly above one of said rolls, and spaced
in close proximity, a slide valve for controlling
the inlet opening having its free edge disposed
towards said latter roll, said slide valve and
said latter roll forming a‘means of agitating and
sively increased size upon rotation of the oper
controlling the flow of material into the crusher,
ating member 29 to the desired extent. Thus,
a spreader member disposed between said rolls
I provide a simple means of control of the feed
below said slide valve, said spreader having rear
and agitation of the material as it passes to
wardly inclined surfaces diverging from an apex
the rolls.
position adjacent to the middle of said latter
In order to distribute the material uniformly 40 roll
for uniformly directing the material across
along the length of the rolls B and C, I provide
a spreader 3| best seen in Fig. 3 which is formed
to provide a spreader face 32 which has an apex
33, the surface 32 gradually receding outwardly
the length of said rolls.
»
3. A crusher for grain, cereal or the like com
prising a casing having an inlet opening, a pair
of crusher rolls rotatably mounted in the casing
and rearwardly from the apex at its center to 45
in parallel relation to one another, means for
have a plough-like effect in the stream of mate
driving said rolls, said inlet opening being dis
rial being fed to the rollers so that the surface
posed
directly above one of said rolls, and spaced
at the outside of the rolls will be fed with a
in close proximity, a slide valve for controlling
substantially corresponding amount as is fed at
the inlet opening having its free edge disposed
the middle of the rolls. The spreader 3! is car 50
towards
said latter roll, said slide valve and said
ried in any suitable supports such as the side
latter roll forming a means of agitating and
brackets 34.
controlling the flow of material into the crusher,
In operation, roll B is driven by its power me<
a spreader member disposed between said rolls
dium. Roll C is then caused to rotate manually
below
said slide valve, said spreader having rear
in the opposite direction by rotation of the man~ 55 wardly inclined surfaces diverging from an apex
ually operating member 23.
Grain or other
position adjacent to the middle of saidelatter
material is fed from the hopper ll through the
roll for uniformly directing the material across
inlet opening 12 and as it passes between the
the length of said rolls, said grain, cereal or the
rolls B and 0 forms a frictional drive medium
like after being fed through said inlet opening,
60
between the rolls so that the idler roll C is brought
forming a friction drive medium for continuing
up to the speed of the driven roll B and con
the rotation of the idler roll through the rota
tinues to operate accordingly throughout the
tion of the driven roll.
crushing operation.
4. A crusher for grains, cereal or the like com
The grain passing through the inlet I2 is agi 65 prising a casing having an inlet opening, a pair
tated by the driven roll B and fed in quantity
of crusher rolls rotatably mounted in the casing
between the rolls in accordance with the adjust
in parallel relation to one another, means for
ment of the slide damper 25. It is likewise fed
driving one of said rolls, the other being an idler,
manually operable means for causing rotation of
in a uniform manner to the rolls by reason of
the spreader 3| which distributes it along the 70 the idler roll, the material to be crushed fed
through said inlet opening forming a friction
length of the rolls.
drive medium for continuing the rotation of the
By this simple mechanism I am able efficiently
idler roll through the rotation of the driven roll,
to crush material and eliminate such previous
said inlet opening being disposed directly above
necessities as mechanical agitators and special
gearing for driving both crusher rolls. Accord< 75 the driven roll and spaced in close proximity
2,442,740
5
6
thereto, a slide valve controlling the inlet opening and having its free edge disposed t "
the driven r011 and adjusi-eg B with respec
to, said driving roll and .;.ide valve forming
means for agitating the material in the i
_
‘
_
opening and for controlling the flow of said ma~
terial, and a spreading member disposed between
a
REFERENCES CITED
“:ollovving references are of record in the
‘.lis patent:
9
rolls below said valve and having inclined
surfaces designed to guide and spread the inflowing material along the length of said rolls, 10
the material to be crushed fed through said inlet
opening forming a friction drive medium for con-
UNITED STATES PATENTS
Number
Name
Date
245353
Duvau ——————————— ~- Aug- 9, 1331
439,596
326,140
Howell --------- -- Oct- 23, 1390,
Bryant ————————— ~- July 17’ 1903
1314:3533
1,065,993
F1‘ azee —————————— —- Jan- 9, 1912
Bernhard ———————— —— July 1: 1913
tinuing the rotation of the idler roll through the
rotation of the driven roll, and means for yield
ably urging the idler roll in the direction of the 15 Number
tion
driven
with
rollthe
to maintain
latter while
frictional
permitting
driving
said
connecidler
23%;:
’ ,7
FOREIGN PATENTS
you to yield
Great Britain ____________ __ 1883
4,061
MELVIN S. GROH.
Country
Date
gern;a%y‘_£_f
Tea
1} am---------------- June 23’
--
7
Документ
Категория
Без категории
Просмотров
0
Размер файла
450 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа