вход по аккаунту


Патент USA US3071232

код для вставки
Jan. 1, 1963
Filed Sept. 11, 1958
4 Sheets-Sheet 2
?’uJJeU C J‘u/hran
PM 9-. vow
Jan‘ 1’ 1963
Filed Sept. 11, 1958
4 Sheets-Sheet 4
(k I
| Q
§\ /
5 Q
=1 Q’
i2 , _
l I
I _
i l
?uJJe? C Ju/l/van
Patented "Jan. 1', 1963
. assrgnors to Koenig Iron Works, Inc., Houston, Tex,
a Texas corporation
Filed Sept. 11, 1958, Ser. No. 760,324
3 Claims. (Cl. 192-12)
This invention relates to winches of the type used in
hoisting, lowering or pulling operations. The main ob
the increased design efficiency and torque transmitting
capacity of such arrangement, for it 'is well known that
the maXirnum'torque which may be transmitted between
two joined rotating parts is equal to thesheer strength
of the coupling multiplied by its e?ective distance from
ject of the invention is to provide a novel winch of gen
eral application and of unusually compact and rugged
'_ '
v Another object is to provide a winch in which the
means for driving the drum are substantially more rugged
and powerful than in previous designs.
slight modi?cation shown in FIG. 9', the unit can be
adapted to produce rotation of the‘ shaft'with the drum
in order to obtain the occasionally desired bene?ts .of a
rotating cathead sheave at one or both ends of the winch.
However, in the alternate as in the primary embodiment,
the drum'wheel and the drum are coupled externally of
the shaft, and the driving force therebetw'een is trans?
mitted at a point or points substantially removed from the
axis of rotation. Those versed in the art will recognize
Herbert Koenig and Russell C. Sullivan, Houston, Tex.,
the axis'of rotation.
,_ '
_ __
Referringrnow, to the drawings, the Winch, 'asfg'en'erally
shown in FIGS. 1 and 2, includes a drum 10 rotatably
mounted on adrum shaft '11. A cable, ‘rope or ,wire line
Another object of our invention is to provide a winch
in which the drum is actuated from'the powering means
through a drum wheel and clutching element compactly
not shown, is‘wound aboutthe [drum ltlfandaiicom
located at' the same side of the drum and within a com 20 plishes the hoisting, lowering or pulling 'oper ions f0]
mon lubricant casing.
' whic-lithe unit isintenldeda Bearings inthetorm' bf'bus'h
7 _Another_ object is to provide _a_ winch having adriving
and clutching connectionjfor: the
ing’s. . or,‘ antifriction ‘ roller. hearings f '12 {at _ p0§itione<
of simple and
within‘ each endllof, the'drum.-about-Tthe sh n
highly'e?icient design, the torsional load bearing capacity
i'svh‘ich is ' not limited by _ the .diarneter'__off "the ‘fdrlum'
shaft,'joumal'_-.beating ,mount 13 is positioned onefenc'
of, shaft 511, and is.,provided_'~withj tappmrepeses 14m
fAnotherfobject is_ tov avoid deformation andiuntimely
failure‘ of'the
peildén?yofthishaib j
' I
casing 15_ similarly adaptedhfor.mouuting'by,
l ‘I
' “Another object is‘ to provide awinch which in'v'itsr'pre-v 30 tappedfrec'ess'esil?."qBearirig..hieur?ij?la
15 .havejopposing ,flanges 17 _ and 18 betwe n"d,'_
__ ‘_Tstr'u
ferred ‘embodiment is adapted for ready‘ rnofun'tirig'v in
members _19fare I provided 'to holdnthe unit together; ant
any of a wide variety‘ of locations,'either on‘ vehicles or
stationary supports,'-by means of'the terminall'ehds of
to serveas cable ‘drum guards. ‘ The- struts areexternalh
threaded at each .end for engagement with the strutnu't
_|Another object of our invention‘is to provideanovel 35
automatic winch brake ‘which is adpted to‘re'sist reverse
. 3 shows
. ,~ a vtransverse
Y ..section of_
., . casing
loads on the drum without imposing such'lo‘ads'_ on the
at the'..point. where drive shaft .21: extends therethron'gh
A worm.22 is ,formedonthe .dr'ivefshaft andwormjgea'
-' , ‘_
" An additional object of our invention is' 'to"previde,lan
automatic winch ‘brake, the‘elem'ents of z'whiche‘are so
23, rotatablyz'carried on shaftl‘l, istadaptedzfor. engage
menttherewith. . w,Rotation ofv shaft 21 thus producesgrota
constructed"and'_arranged that it is readily‘ convertible to .
resist either clockwise or counterclockwise rotation.
e'Another object is to provide a modi?ed formvof our
. 'Re‘ferringnagain.
the end cap
is ,securedthere
casing v15
invention in which rotating cathead'sheaves'maybe 'sei
cured at either or both ends of the ‘drum shaft of'the
winch without sacri?ce of any of the foregoing objects", I _; I
to by any conventional means‘such as bolts '25. '- v.‘Withi:
the lubricant casing are the driving assembly, the drive]
-. assembly. and the clutching elements,_.all of which coac
_,_',These_and other more speci?cobjects' hereafterap
to transmit power asdesired fromzthefrdrive :shaft 21_ It‘
the._drum ,10. i The clutch provides meansito break th
power chain'and relarr the- rotatingtorce'on ‘the; drum
In __o_ther..words,, disengagement ofs-the .elutch- , allows th
drive: shaft tocontinue to turnwhilethe drum.i_s__at..resj
2 is a position;
section taken alongline
' r y 2-'—2'of_
Y Q _FIG._'1,
, The ,driving . {assembly “comprises; thev wormlgear. c
driving .wheel . .21}: and. the ,driving; sleeve :26 which ji
‘FIG.’ 3 is_a vertical transverse section taken-orifline
adj acent ‘thereto-on ‘the .shaft : 1-1,. ,These 1- elements . ar
'FIG. 4, is‘a vertical transverse‘section taken onlbrokten _
line 4-44 of FIG. 1;
I FIG. 5 isaside view and section of a detail
stantially on line 5-5 of FIG. 4;,
" \
_ p
' FIG. 6 is an enlarged detail taken on the same section
line as FIG. 3;
pearing' are attained in the,novelwinch-construction
illustrated in the accompanying drawings in__which_: f ,_
'__,'FI_G.V1 l is a ‘topv view of the winch with the clutchi'in
but showing the clutch in they engaged position;
_, .
‘_ FIG. 7 is a section taken on line 7-77 of FIG. 6;
' FIG. 8 is a section taken on line 8-8 of FIG. 6_;'and
locked together by meansvofdeapaserews 27.~-.;,¢Ertter_nz
splines 28:a e: formed, about. the driving sleeve ponvith
end opposite the worm gear 23;. ._
; -
.‘The driven assembly comprises the._driven sleeve 12
which is __ca'rried about the shaft. 11 intermediate .th
driving assembly and the :drum 10. .At the end_of_th
drivensleeve 29 which is adjacent the drum .10, a ?ang
30 extends radiallyoutward to abut the ?ange 31 o
the drum. ‘Cap screws_32 secure these members tc
gether. At the end of the driven sleeve 29 adjacent th
FIG. 9 is a detail vertical sectionlike FIG. 2, but
showing the slight modi?cations required to provide a. 65 driving sleeve 26 are provided external splines 33 whic
are similar to splines 28.
rotating cathead sheave.
Between the sleeves 26 and 29 and the shaft v11 ar
The objects of our invention are achieved by novel
designpwhich differs in many respects irom that of con—
antifriction hearings or bushings, shown as 34 and 3
respectively, which allow rotation between the sleeves an
parture from the prior art is the provision in the primary 70 the shaft. A'rigid collar 36 is formed about the shat
11 between the‘driving and driven sleeves 26 and 29 t
or FIG. 2 embodiment of a non-rotating shaft upon
maintain the proper spacing therebetween, and to react th
which both the drum wheel and drum rotate. By the
ventional units. The immediately apparent point of de
axial thrust which may be communicated to the driving
assembly by the worm 22. The shaft 11 is maintained in
a ?xed position relative to the casing by means of the
transverse set screw 37 through end cap member 24.
The clutch assembly comprises the lever 38, atop and
outside the casing 15, the pinion shaft 3? to which the
lever is attached, pinion gear 40, actuating ring 41 and
clutch sleeve 42.
The last named member in the clutch
engaged position is carried about the adjacent portions
of driving sleeve 26 and driven sleeve 29, and is inter
nally splined for mating engagement with the external
splines 28 and 33.
Snap rings 42a serve to retain the
clutch sleeve 42 within the actuating ring 41.
The actuating ring and clutch sleeve are adapted for
movement along the axis of shaft 11 through a range of
travel extending from the point at which the clutch sleeve
is wholly removed from contact with the splines 33 on
The inner wall of the housing 61 and the outer wall of
the outer ring 60 are provided with teeth identi?ed by
reference numerals 63 and 64,, respectively. A number
of clutch rings 65 are carried within the housing 61 and
are secured thereto by teeth about the outer circum
ference which mate with the teeth 63. Interspaced be
tween the rings 65 are clutch rings 66 which have teeth
about their inner circumference which mate with the
teeth 64 on the outer ring 60. Thus the clutch rings 66
rotate with the outer ring 60, and the clutch rings 65 are
?xed by the housing 61. The tendency of the outer
ring to rotate is resisted by the frictional drag between the
alternating clutch rings, and the magnitude of the result~
ing frictional force is determined by the force with which
the clutch rings are compressed by the pressure plate 67
acting thereagainst. The force on the pressure plate is
applied through the centreing ball 68 which assures equal
sleeve 29, the disengaged position, to the point at which
distribution of the load over the area of the clutch ring
the clutch sleeve extends onto each of the driving and
faces, and it is adjusted by the brake adjusting screw 69
driven sleeves an approximately equal amount, the en 20 which is movable along threads 70 by means of appro
gaged position. It is apparent that in the above de
priate wrench ?ats 71 on the end of the screw 69 which
scribed arrangement, torque is effectively transmitted from
projects outside the unit. Compensation for cumulative
the driving to the driven assembly through a coupling
wear on the clutch rings is provided by moving the pres
which is highly e?icient in operation and may be readily
sure plate inward. Oil seal 72 is carried about adjust
The reciprocation of the actuating ring to produce
25 ing screw 69 to maintain a seal against the cap mem
ber 62.
The rollers 58 are maintained in contact with the inner
wall of the outer ring 60 at all times by the ?at springs 59.
Rotation of the drive shaft 21 and inner ring 56 in a
a key 43. The teeth on pinion 40 mate with the rack
counterclockwise direction causes the rolling or dragging
teeth 44 on the actuating ring 41, and translate the
contact between the rollers and outer ring 60 to be exerted
rotation of the shaft 39 as produced by the lever 38 into
in a direction which urges the rollers toward the deeper
linear movement.
end of the notches 57, and the inner ring rotates freely
engagement and disengagement of the clutch is produced,
as best shown in FIG. 5, by rotation of the pinion
shaft 39 which carries thereon pinion gear 40 secured by
Atop the actuating ring 41 is a raised pad 45 which
has two aligned recesses 46 and 47 therein. When the
clutch is in either the engaged or disengaged position,
within the outer ring. However, when the counterclock
35 wise rotation’ceases, any tendency of a reverse load on the
drum to feed back through the drum Wheel into the shaft
21 and produce clockwise rotation thereof will be resisted
by the drag between the clutch rings 65 and 66 as the
is received within recess 46 or 47. The recesses are of
58 instantly lock the inner ring to the outer ring.
di?erent effective depths so that the position of actuat
40 The locking of the rings results from the fact. that clock
ing ring 41 will be externally signaled by the extent to
wise rotation tends to move the rollers toward the shallow
which the top of detent 48 is visible. Further, when the
end of their respective notches.
clutch is neither completely engaged nor disengaged but
Our automatic brake may be readily adapted for re
is in some intermediate position, such condition will be
verse operation, i.e., to allow clockwise rotation and re
readily apparent from the varying extent to which the
sist counterclockwise rotation. This change is accom
top of the detent projects above the casing. The edges 45 plished
by reversing the mounting of inner ring 56 on the
of recesses 46 and 47 and the channel therebetween
shaft 21, so that the depth of the notches 57 increases in
smoothly merge so that detent 48 may readily snap into
the bulbous lower end of a spring pressed detent 48
mounted in a ?anged thimble 49 in the upper casing wall
and out of the recesses when the clutch ring 41 is
Referring now to FIG. 3, the drive shaft 21 is pro
vided with tapered roller bearings 50 and 51 which posi
tion and guide the shaft for proper mating with worm
gear 23. At the end of the shaft 21 which projects from
the lubricant casing 15 is a keyway 52 which provides a
convenient point of attachment for a crank or other
source of power. Cover plate 53 which is secured to
lubricant casing 15 by means of cap screws 53a houses
the oil seal 54 and maintains the drive shaft and its bear
a counterclockwise direction rather than in a clockwise
direction as in FIG. 7.
The automatic brake is a feature which is essen
tial in a hoisting winch, one winch is adapted to lift a
load and suspend it for an interval in an intermediate
position. In a so-called pulling winch, one in which
.operations are never arrested with a suspended load on
the drum, there is no necessity for auxiliary means to
perform a braking function.
Carried within the bearing mount 13 is the drag brake
which comprises a brake pad 73 and compression spring
74 within the well 75. The pad is biased against the
ings in the assembled position.
end ?ange 76 of the drum 10 and exerts a constant force
At the end of drive shaft 21 opposite the keyway 52 60 to
eliminate overrunning and backlash of the drum dur
is provided an automatic safety brake of novel design
ing operation.
indicated generally by reference numeral 55. As shown
The casing 15 is partially ?lled with lubricant, and the
in FIGS. 6 and 7, the brake consists of an inner ring 56
location of the drum wheel and clutch assembly within
keyed at 56a to the drive shaft 21. About the circum
a common housing makes possible a simple and e?icient
ference of inner ring 56 are a plurality of notches 57
system of splash lubrication. A passage 77 through the
having inclined bottom walls as shown in FIG. 7. With
30 and drum 10 interconnects the casing 15 and the
in each notch is a roller 58 and a ?at spring 59 which
annular chamber 78 within the drum to provide lubrica
biases the roller toward the shallow end of the notch.
tion for the bearings 12. An oil seal 79 is provided be
Outer ring 60 which is rotatable about inner ring 56
the casing 15 and the ?ange 30 to effectively seal
serves to con?ne the rollers within the notches and the 70
the interior of the unit and prevent leakage. In the dis
?at spring 59 maintains the rollers in contact with the
closed arrangement, the necessity for additional lubrica
outer ring. The entire assembly is carried within the
points is eliminated. Casing end wall 24 sealingly
brake housing 61 which is secured to casing 15 by means
engages drum shaft 11 near its extremity, a suitable pack
of bolts 61a, and closed at the opposite end by cap
ing being provided in groove 11a for this purpose.
member 62.
A number of ?ns or vanes 80 are formed within the
drum and said driving wheel, a clutch sleeve received on
and slidable ‘along said sleeve members in splined con
nection therewith, means to shift said clutch sleeve to
drum 10 and project into the chamber 78. Such mem
bers are for the purpose of cooling the lubricant by ab
sorbing the heat therefrom and dissipating it through the
selectively couple and unoouple said drum and driving
The provision of a non-rotating drum shaft in the
FIG. 2 embodiment of our invention makes it possible
to mount the winch by means of the projecting ends of the
shaft. Such installation requires only a pair of aligned
openings in the mount to receive the ends of the shaft, and
a pair of ?xed points for attachment of bolts in the
holes 14 and 16. The ?exibility of installation thus af
forded is an obvious advantage of our novel design.
FIGURE 9 illustrates a modi?cation of the basic unit
to provide a rotating cathead sheave on the end of shaft
11. A simple mounting member is shown at the end of
the winch adjacent the sheave, and a similar arrangement
would be necessary at the opposite end to properly sup
port the unit. Contrary to the described mounting ar
rangement for the FIG. 2 embodiment, the drum shaft
could not be utilized to provide a ?xed support point
in the FIG. 9‘ unit unless an antifriction bearing were
included between the shaft and the mount.
In describing the FIG. 9 winch, the same reference
numerals identi?ed in FIGS. 1 through 8 will be employed.
The changes are explained below with the aid of new ref
wheel independently of said shaft, a power input shaft in
proximity to said drum shaft, meshing gear teeth on said
power shaft and said drive wheel, concentric inner and
outer rings about said power shaft, a casing portion en
compassing said rings, said inner ring being rotatable
10 with said power shaft, latch means between said rings
permitting free relative rotation thereof in one direction
while resisting relative rotation thereof in the opposite
direction, ?rst friction plates projecting outwardly from
and rotatable with said outer ring, second friction plates
.15 secured to said casing portion and projecting therefrom
inwardly and alternately between said ?rst plates, said
?rst and second plates being relatively movable axially
of said power shaft to vary the spacing thereof, means
for biasing said plates together for varying the frictional
20 pressure therebetween to control the braking effect thereof
upon said power shaft and said drum, and a sealed lubri
cant casing received about said drum shaft, said clutch
sleeve, said ‘drum wheel, and said power shaft in sealing
engagement with the sleeve member projecting from said
25 drum and with said drum shaft on the side thereof op
erence numerals.
posite from said last mentioned sleeve member.
The driving sleeve 26 is not rotatable about the shaft
2. A winch as described in claim 1 in which said latch
11, but is secured thereto by a key 81. The bearing 34
means comprises wedging surface elements in the surface
is eliminated. A cathead sheave 32 is secured to the
of at least one of said rings opposing said other ring, said
shaft 11 at the end thereof adjacent the casing 15 as by 30 surface elements being non-concentric with said ring,
means of a key 82a. A similar sheave, not shown, could
and wedging rollers interposed between said rings at said
be similarly attached to the opposite end of the shaft.
surface elements.
As the shaft 11 will rotate with the drum wheel, it is
3. A winch as described in claim 1 in which said ?rst
necessary to provide bearings 83 and 84, located respec
and second friction plates are, respectively, in splined con
tively in the end cap member 24 of casing 15 and the bear~ 35 nection with said outer ring and said casing to permit
ing mount 13. Such bearings allow rotation of shaft 11
axial shifting of said plates relative to said latter ring
and maintain a seal to prevent leakage of the lubricant.
and casing.
It is apparent that in the FIG. 9 embodiment, the shaft
11 carries only su?icient load to drive the cathead sheave
References Cited in the ?le of this patent
82. The driving force for the drum is still transmitted 40
through the driving and driven members and the clutch
assembly, and the previously outlined advantages of our
Malouin ____________ __ June 24, 1924
invention are still attained.
Anibal ______________ _... Sept. 16, 1924
Obviously, various modi?cations may be made. For
example, drive shaft 21 may be located and disposed as 45
Various other changes will occur to those skilled in the
art, and the protection of all modi?cations that come
within the scope of the appended claims is contemplated.
The invention having been described, what we claim is: 50
1. In a winch, a drum shaft, a drum rotatably mounted
on said shaft, a drum driving wheel on said shaft, sleeve
Swartz _______________ _._ Dec. 4,
Shonnard ___________ __ Mar. 21,
Nelson _____________ _.. Mar. 24,
Kelley ______________ __ Oct. 27,
Symonds ____________ _.. Apr. 4,
Szekely ____________ __ June 23,
Curtiss _____________ __ Mar. 1,
Short ______________ _.. June 18,
desired and the driving gearing modi?ed accordingly.
member received about said shaft and, respectively, pro
jecting toward each other from and movable with said
Germany ____________ __ June 4, 1936
Без категории
Размер файла
679 Кб
Пожаловаться на содержимое документа