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Патент USA US3051336

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Aug. 28, 1962
H. BRANDT
' 3,051,326
CRANE DRIVES
Filed April 29, 1959
3 Sheets-Shee‘bl
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INVENTOR
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Àug. 28, 1962
H. BRANDT
3,05î,325
CRANE DRIVES
Filed April 29, 1959
5 Sheets-Sheet 2
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Àug. 28, 1962
H. BRANDT
3,051,326
CRANE DRIVES
Filed April 29, 1959
5 Sheets-Sheet 3
United States
atent
Patented Aug. 28, 1962
2
1
rate take-offs for each of the drum turning mechanisms
requiring operation in the crane.
`A further object of the invention is to provide a crane
3,051,326
CRANE DRÍVES
_
Herbert Brandt, Leipzig, Germany, assigner to VEB
Getriebewerk Leipzig, Bohlìtz-Ehrenberg, Germany
Filed Apr. 29, 1959, Ser. No. 809,788
5 Claims. (Cl. 212-38)
driving mechanism which is simple in design, rugged in
construction, and economical to manufacture.
The various `features of novelty `which characterize the
invention are pointed out with particularity in the claims
annexed to and forming a part of this specification. For
a better understanding of the invention, its operating ad
This invention relates in general to drive mechanisms
and in particular to a new and useful main motor drive
mechanism for use in association with a crane having 10 vantages and specific objects attained fby its use, reference
should be had to the accompanying drawings and descrip
multi-’drum operation for various sections of the crane
including the grab-lift mechanism, the pull-in mechanism,
tive matter in which there is illustrated and described a
preferred embodiment of the invention.
the crane rotating and the vehicle transport or propul
sion mechanism.
_
In the drawings:
The invention is particularly applicable to an 1nternal 15
combustion engine driven crane including the usual boom
and associated lifting and control mechanism. The 1n
vention provides a novel drive to operate a system of
rrotating drums to eifect the desired motions of the mech
anisrns enumerated.
Previous drives of this nature were nothing more than
a series of take-offs from the main engine drive shaft.
Such -drives were diñicult to mount, and remove for
maintenance and adjustment, and »the drives were unable
FIG. l is a top view of a diesel crane driving mech
anism constructed in accordance with the invention;
FIG. 2 is `a sectional view, with parts broken away,
of the mech-anism indicated in FIG. l, taken along Iline
2_2; and
FIG. 3 is a partial sectional view of the switching
and reversing mechanism taken in the direction of line
3*?, of FIG. l.
Referring to the drawings in particular the invention
as embodied therein includes a main driving internal
25 combustion engine M arranged to drive through a switch
to work independently of each other.
ing and reversing gear mechanism generally designated
Some driving mechanisms including driving from the
A, an auxiliary «power gear mechanism generally desig
main engine via a central distribution ygear connected t0
nated B, and a crane-operating distributor gear mechanism
the individual drive mechanisms have been proposed.
generally designated C. The auxiliary power gear mecha
Such -drives include closed-in »gear blocks which are posi
tioned on the crane as separate units.
The blocks are 30 nism B is arranged to operate a vehicle transport or
arranged alongside the drums which they drive and the
propulsion mechanism generally designated D.
The crane operating gear mechanism C is arranged to
drive independently each of the following: an emptying
and holding mechanism generally designated E, a grab
are connected to a common distributor gear for actuation.
Such construction is not desirable for rapidly movable 35 lift or lifting mechanism generally designated F, 4a pull
individual lgear blocks are not interchangeable with one
another.y With this type of drive all the individual blocks
cranes, such as auto cranes which must move cross-coun
try. For such a crane it is necessary that the propulsion
in mechanism generally designated G, and a crane ro
tating mechanism generally designated H.
The lifting mechanism F, the pull-in mechanism G
or transport drive has additional clutches, switching and
and the crane rotating mechanism H each includes a
reversing connections in order to operate the transport
40 drum having built in driving mechanisms of the same
gear at both slow and fast speeds in either direction.
In accordance with the invention a crane drive is pro
vided in association with an internal combustion engine,
particularly a diesel crane. The mechanism includes a
multi-drive of two or more interchangeable cable drums.
general nature as that indicated at 68 for the emptying
and holding mechanisms E (FIG. l).
Each of these
mechanisms E-H is connected -by means of its associated
shaft to the crane operating mechanism C. Each of the
A distributor gear for the crane rotating and the vehicle 45 shafts 67, 66, `65 and 64, leading to the respective mecha
nisms E, F, G and H, includes a beveled gear at its end
transport or propulsion mechanism is incorporated with
adjacent the associated drum, comparable to the gear
a switching gear whose olf-drive may simultaneously be
72 for the mechanism E to be described more fully here
the drive for an auxiliary gear of the transport mechanism
inafter.
and a distributor gear. ‘For reversing the «direction of
The crane operating mechanism C is driven via a
rotation and disconnecting the crane driving mechanisms, 50
clutch 38 land a shaft '39 from the switching and reversing
except the transport mechanism, there are provided
gear mechanism A. The mechanisms D and H have
clutches connected with each other lying in a line per
drums similar to drum 68 of mechanism E. Each of
pendicular to the engine shaft and which maybe switched
the drums D, E, F, G and H has equal dimensions and is
independently of each other. These clutches are con
nected to the gear drums on the driving side and through 55 mutually exchangeable. They are mounted in closed
winch frames.
a beveled 4gear set-up to the individual drive mechanisms.
Shafts connect each of the off-drives through the beveled
gears and extend in respective two and three dimensional
directions to the desired location for operating the various
drum turning mechanism.
Accordingly, it is an object of this invention to pro
vide an improved auto crane driving mechanism including
means for independently driving the grab-lift or lifting,
the pull-in, the emptying and holding, the crane operating,
the crane rotating `and the vehicle transport «or propul
From these drums ropes or cables are run to the as
sociated mechanisms for operation, for example, of a
boom (not shown) for the mechanism F, and if necessary,
60 they are first run over drums having reduction gears
which provide for multiple reduction.
The cables are
run over the boom and connected to a lower block (not
shown) which includes means for suspending a load,
such as gripping jaws or the like. lf required, the drums
65 can be used as Winches for advancing the vehicle or ex
tracting it -from -a mud hole or rough terrain in those
instances where the vehicle becomes stuck.
the crane.
The internal combustion engine M has a main shaft 1
A further object of the invention is to provide a crane
which is connected to one side of a fluid clutch 2. The
.driving mechanism in which the operating and switching 70 disconnectable off-drive of the fluid clutch drives the
sion mechanisms for any desiredvoptional requirement of
mechanisms are centrally located and arranged to be
switching and reversing gear mechanism A. Driving is
«driven by the main propulsion engine and including sepa
from a drive shaft 3 of the clutch 2 through gears 5,
3,051,326
6 and 7 to an intermediate shaft 8. The shaft 8 is pro
vided with a gear 9 at its opposite end which drives gear
10 mounted on a shaft 11. The driving connection be
tween the clutch 2 and the shaft 11, via gears 5, 6, 7,
9 and 10> as described, is disconnectable by conventional
similar to shaft 61, which have respective upper level
gears 95, 97 and 99, driving bevel gears 96, 98 and 100,
respectively. Each of the various operating mechanisms
are similarly connected to the switching and reversing gear
C, as follows: the drive goes from gear 96 via a shaft 64
4In `this condition, a switching and
to the crane rotating mechanism H, from gear 98 via a
reversing gear 4 similarly driven by the off-drive 3 may
be coupled to the gear 10 which is also connected to
shaft 65 to the pull-in mechanism G, a-nd finally from gear
100 via a shaft 66 to the lifting mechanism F.
the output of said gear 4, as shown in FIG. 3. By this
The individual drives of the operating mechanisms D,
means (not shown).
arrangement, the shaft 11 can be optionally driven either 10 E, F, G and H are all similar. In FIG. l the individu-al
mechanism for the emptying and holding mechanism E is
through the gear 4 or via gears 5, 6, 7, 9 and 19, in
shown and it includes `a drum 68 which is hung via fasten
either rotational direction, or disconnected altogether.
ing flanges 69 -in a winch frame 70. One of the fastening
Shaft 11 is provided with pinions 12, 13, 14 and 15
which, respectively, drive underlying gears 16, 17, 18
flanges secures a case 7l in which a bevel gear pair 72 and
and 19 respectively, which latter gears are slidably ar 15 73 cooperate to drive a sun pinion shaft 74. On the outer
end of the shaft 74 there is provided a brake disc 75 for
ranged on a switching shaft 20, which can be switched
selectively. Each of the gears 16-19 has associated
therewith a respective switching or coupling member 16a,
coupling an external brake, if desired. On the other end
17a, 18a and 19a, slidably arranged (preferably by pairs,
case 71 forms with an inner toothed rim 77 and the
of the shaft 74 there is provided a sun pinion 76. The
as shown in FIG. 3) on the shaft 20 and rotating in unison 20 iiange 69 a rigid bearing about which the drum 68 rotates.
From the sun pinion 7 6- there are driven a plurality o-f
therewith. By means not shown but well known in the
planet gears 78 which are supported in the inner toothed
art, one >of the gears 16-19 can be selectively coupled
rim 77. A sun pinion 8i) is carried by a cross piece 79
to the shaft 20, as indicated by the member 19a inter
which is entrained by the planet gears 7 8. Two intermedi
connecting gear 19 with shaft 20. Consequently, the
gear mechanism A provides for a selectively connectable 25 ate gears 81 which rotate about bolts 82 mesh with and
rotate an inner toothed rim 83 which is connected with
reduction gear between the shafts 11 and 20.
the drum 68. In the above-described arrangement, the
Shaft 20 is also provided with a beveled pinion 21
system 74, 76-78 provides a planetary gear centered sub
(FIG. l) which drives through a similar beveled gear
stantially in the longitudinal axis of the case 71. The
V22 affixed to an olf-drive shaft 23, whose one side drives
via a clutch 24 the gear mechanism of the auxiliary 30 output of this gear appears at the cross piece 79 carried by
and rotating in unison with the gears 78. 'I'he system
drive mechanism B.
80-83, in turn, provides a reduction gear since the rela
The auxiliary power gear mechanism B includes an
tively small pinion 80, carried by the cross piece 79, drives
-intermediate gear arrangement consisting of a gear 25
the relatively large inner toothed rim 83 of the drum 68
aflixed to a shaft 27, which drives a gear 2'6 affixed to a
shaft 28.
Shaft 28 connects to one side of a clutch 35 through the intermediary of the stationary gears 81.
30, the opposite side thereof being connected to a shaft
29. The drive may, therefore, be either through a gear
v31
to
33
to
aiìixed to the shaft 28 and then to a gear 32 affixed
a shaft 35, or over the clutch 30 and through a gear
The 4drive of the other drums for mechanisms D, F, G
and H occurs in the same manner and the drums are
interchangeable. For this reason, only a schematic show
ing is given in the drawings.
The switching and reversing gear mechanism A, the
añixed to the shaft 29 and through a gear 34 affixed 40
auxiliary power gear mechanism B and the crane operating
the shaft 35. The shaft 35 drives via two resilient
mechanism C are enclosed in their own gear block casings
clutches l36 and 37 the vehicle transport or propulsion
mechanism generally designated D.
The other lside of the off-drive shaft 23 goes to a switch
able clutch 38 which connects to a drive shaft 39 of the
crane-operating distributor gear mechanism generally
designated C. In order to obtain two directions of rotation
of the crane mechanism, there is provided a ñrst series of
gears 40, 41, 42, 43 and 44, gear 40` being rigidly con
nected to the shaft 39, while the others are rotatable about,
but not connected to spaced parallel shafts 45, 46, 47 and
` 48, respectively. The shaft 39 is also provided with a rigid
gear 4‘9 which drives, through an intermediate gear 50, a
85, 86 and S7, respectively. This arrangement permits
easy accessibility of the operating mechanisms and there
are no freely exposed gears where any dust might
accumulate.
`
While a specific embodiment of the invention has been
shown and described in detail to illustrate the application
of the invention principles, it will be understood that the
invention may be embodied otherwise without departing
from such principles.
What is claimed is:
l
1. In a transportable crane having grab-lift, emptying
and holding, pull-in, rotating, and transporting mecha
second series of gears 51, 52, 53, «and 54 also rotatable
about, but not entrained by the shafts 45, 46, 47, and 48. 55 nisms, the improvement comprising a main driving engine,
a multi-step switching and reversing gear mechanism
Switching and reversing clutches 55, 56, 57 and 58 are
driven by said main engine and including two separate
connected to these shafts 45, 46, 47 and 48 between the
off-drives adapted to be rotated in either direction and at
respective pairs of driving gears 41 and 51, 42 and 52,
a predetermined number of torque/speed ratios, clutch
43 and~53, as well as 44 and 54. Thus, the shafts 45~48
provide the outputs of the lswitching and reversing clutches
55-58, respectively, while providing support to (but no
60 means for each of said off-drives to connect and discon
nect said off-drives as desired, an auxiliary power gear
driving engagement with) the gear trains 41-44 on one
mechanism connected to one of said off-drives for driving
side, and 45-48 on the other. At any given moment, the
-in either direction said transporting mechanism, and crane
clutch to be operated is Aconnected to one or the other of
operating distributor gear means connected to the other
the driving gear pairs, so that rotation in one direction or 65 of said off-drives for individually driving in either direc
the other is obtained at the respective output shaft.
tion any of said grab-lift, said emptying and holding, said
A take-off from each of the shafts 45, 46, 47 and 48 is
pull-in and said rotating mechanisms independently from
provided via bevel gear pairs 89 and 90, 91 and 92,
93 and 94, aswell as 59 and i60 (the gears 90, 92, 94
the operation of said transporting mechanism.
2. In a transportable crane, the improvement according
' and 60 being mostly hidden in FIG. l by upper gears 95, 70 to claim l, wherein said distributor gear means includes
97, ‘99 and I62. to be described hereafter). The gear 60 is
an output shaft extendable at an 1optional angle to each
of said grab-lift, emptying and holding, pull-in and rotat
upper end which drives, through a bevel gear 63 and a
ing mechanisms for independently driving each of said
, shaft 67, the emptying and holding mechanism E. The
output shafts.
gears 90, 92 and ‘94 are all affixed to separate vertical shafts 75. 3. In a transportable crane, the improvement according
I affixed to a vertical shaft 61 which has a bevel gear 62 at its
3,051,326
5
to claim 2, wherein said distributor gear means is provided
with two sets of driving gears, the gears of one set being
rotated in a direction opposite to the corresponding gears
of the other set, and clutch and gear means centrally dis
posed between said two sets of gears, for selectively driv
ing said output shafts in one direction by the intermediary
of said one set of gears and in the opposite direction
by the intermediary of said other set of gears.
4. In a transportable crane, the improvement according
to claim 2, wherein each of said grab-lift, emptying and 10
holding, pnl-in, rotating, and transporting mechanisms are
of identical interchangeable construction.
5. In a transportable crane, the improvement according
to claim 1, wherein at least one of said mechanisms in~
cludes an exposed disc for applying an external, independ
ent braking means thereto.
References Cited in the ñle of this patent
UNITED STATES PATENTS
1,602,562
Armstrong ____________ __ Oct. ‘12, 19'26
2,020,888
‘2,380,626
Hight ________________ „2 NOV. 12, 1935
Zeilman ______________ „__ July 31, 1945
2,572,029
2,778,507
Huston _______________ __ Oct. 23, 1951
Scheuerpñug __________ __ Jan. 22, 1957
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