US1781195A - Reversible cable drum - Google Patents

Description

'Nov; 11, 1930. G.- T. RONK REVERSIBLE CABLE DRUM Filed June 20, 1927 2 Sheots-Sheet 1 Nov. 11, 1930. RQNK REVERSIBLE 05am: mum

; Filed June 20. 1927' 2 Sheets-Sheet 2 Patented Nov-11, 9 i" ,umrao sures PATENT orrics 'enonen r.

noun, or ennui; mm, IOWA, assienon yrosr'nun'an mountain con- POBATION, or canes. mine, IOWA, A CORPORATION or IOWA 'nnvaasmm cummum Application fled June-20,1927. Serial in. 260,134.

. The object of my invention is to provide a reversible drum of simple, durable and inexpensive construction, which may be utilized for operating various kinds of cable con- I trolled devices such as drag line buckets, clam shell and hoisting devices, the drum also being particularly adapted for operating the dipper stick of an excavating bucket.

A further object is to provide a reversible m drum which is provided with a suitable driving mechanism designed to be o rated in a continuous manner and in one direction, and to. provide in connec-' tion therewith means whereby the cable drum may be operatedin unison with said driving mechanism, or may be operated in 'a reverse direction at a higher speed than'the said driving device.

A further Afurther object is to provide in connection with a reversible cable drum, improved 80 means for throwing the drum into operativerelation with a driving element, said device being provided witha' manually controlled clutching mechanism and a power clutching mechanism so arranged that the power clutchfully set forth, pointed out in my claims, and

. illustrated in the accompanying drawings, in which:

cable drum.

Figure 3 is a detail sectional view. taken 80 on the line 3-3 of Figure 2.

at a uniform speed object is toprovide in a reversible cable drum, improved means where-- be continuously operated in one direction ,m. a counter clockwise d1rect1on,. as illussemi-circular clutch members 19. The ends ing mechanism will be actuated through v connected with a bar 24 which issecur'ed to a suitable lug projecting inwardly'from one a Figural is a side elevation of improved Figure 4 is a detail sectional view taken I on-the line 4-4 of Figure 2.

Figure 5-is a detail sectional view taken on the line 5-.5'of Figure 2.

Figure 6 is a detail sectional view taken von 5 theline 66 of Figure 3, showing the manner in which the reversing mechanism is thrown out of gear; and- Y Figure 7 is a on the line 77 of Figure 1.

Referring to the drawings, I have used the reference numeral 10 to indicate frame members on which my device is mounted, said frame members being provided preferably with inwardly projecting brackets 11. Each of the brackets 11 is provided with a detachable block 12 in which is mounted a detail sectional view taken horizontally arranged, shaft 13, said shaft being fixed in said blocks by means of suit-I able set screws 14 so as to support the shaft rigidly therein.

Rotatively mounted on one end of the shaft 13 is a driving gear 15, whichis designed-to trated in Figure 3.. The gear 15 is provided with a hub 16, on which is rotatively mounted a collar 17, the collar being provided with an annular groove 18 in which are mounted of the members 19 are provided with'outwardly extending flan es-20 and '21, the flanges 21 being tfonsiderably longer than the anges 20.' e flanges 20 are provided with a screw 22, while the flanges 21' are. mounted within a bracket 23; said bracket comprising a pair of spaced,vertical1y-arranged members having their upper ends of the frame mem rs10. I r l I 'Mountedbetween the vertical members. of the bracket 23 is a cam 26, said cam being designed to'en'ga'ge oneofthe members 21,' the opposite member 21 being designed to rest against ase'tscrew 27. he cam 26 is provided with a horizontally extending arm- 28, to which an operating link 29 is pivotally nnectedi The members '19 are ad usted in such a manner by means of the screws 22' and 55 56 is mounted between the hub of the clutch spring being connected to the spoke 32 of to mesh with the pinions 37, said gear being 27 that the collar 17 will rotate freely within the members 19 when the lever 28 is at its upper limit of movement, permitting the members 21 to be separated, the said members 19 being designed to frictionally grip theicollar 17 when the lever 28 is moved downwardly, causing'the cam 26 to. elevate the lower one of the members 21. This pro- Vides means whereby the collar 17 will be slightly rotated relative to the rotating hub in a manner hereinafter more clearly set forth.

The collar 17 is provided. with a radially projecting arm 30, the free end of which is provided with a spring 31, one end of the being designed to carry, a pinion '37. Rotatively and slidably mounted on the hub of the spider is a clutchme-mber 38 having its periphery provided with a cone-shaped clutching surface. The hub of the member 38 is provided with a spur gear 39 designed rigidly connected tosaid hub.

Supported on the spokes of the gear 15 is an internal gear 40- which is also in mesh with the pinions 37. Rotatively mounted on the shaft 13 is a cable drum 41 having flanges 42 and 43, the flange 43 being provided with a clutch member 44 designed to coact with the clutch member 38. The flange 43 is also provided with a band drum 45 having a clutch band 46, one end of which is secured to a pin 47 projecting inwardly from the gear ,15. The other endof the band 46 is connected to a pin 48, said pin'being mounted on one end of a lever 49, said lever being pivotally mounted in a bracket 50 secured to one of the spokes of the gear 15. The inner end of the lever 49 is provided with a roller 51 designed to make engagement with a cam 52 formed on the collar 17.

The free end of the band 46 isadjustably connected to the pin 48 by means of a bolt 53, a spring 54 and a bracket 55. A spring member 38 and the inner end. of the drum 41 for yieldably moving the clutch member 38 out of engagement with the clutch memng the drum 41 len hwise on ,theshaft 13. The clutch mem er 44 is her 44'by sli v brou ht into engagement with the clutch mem er 38 by means of a cam device 57 which is rotatively-mounted on the shaft 13 and'which is designed to coact with the sta the lower end of the link 29, the shaft 62 being actuated by means of a hand lever 64.

A large amount of wear and noise may be eliminated by removing the pinions'37 from their coac ting gears, thus throwing the clutch member 38 out of operative relation with the gear 40. The clutch 38 may then be permitted to rotate with the clutch member 44, or the clutch member" 38 may be thrown out of operative relation with the last said clutch member.

The operation of my device is as follows: Assume-that the drum 41 is providedwith a suitable cable having its free ends operatively connected with a dipper stick in such a manner that as the drum is rotated in one direction the dipper stick will be crowded out wardly, and as itis moved in the opposite direction the dipper stick will be moved inwardly. Or the drum might be provided with a cable adapted to operate a drag bucket or a skimmer bucket, one of the ends of the cable being designed to serve as an out-haul cable, and the other end of the cable as an inhaul cable, and in both cases it will be seen that it is necessary to reverse the rotation of the drum to actuate the buckets. Sometimes it is desired to disconnect the drum from its operating means to cause the buckets to be brought to a standstill. v

. Front the foregoing construction it will be seen that if the pinions 37 are mounted on the pins 36 and the gear 15' is rotated in acounterclockwise direction, as illustrated in Figure 3, the internal gear 40 will also be rotated, which will cause the pinions 37 to be rotated, which in turn .will rotate the gear 39 in the opposite direction from the internal gear 40 and at a higher speed. This in turn will cause the clutch member 38 to be rotated in the opposite direction from the gear 15.

Then it will be seen that if the lever 64 is to engage-the clutch member 38, which will cause the drum 41 to be rotated in the opposite direction from the gear 15 and at a higher speed. v.

If the shaft. 62 is operated in a clockwise direction, then the link will be elevated and the drum 41 moved axially and the clutch members 38 and 44 caused to disengage each other. The link 29 will at the same time be moved downwardly, causing the cam 26. to

, squeeze the members 21 together, thereby causing the members 19 to frictionally engage the collar 17, which is being rotated in' unison with the gear 15 through the spring 31. This frictional engagement between the members 19 and 17 will cause the movement of the collar 17 to be retarded relative to the movement of the gear 15, and the cam 52 to engage the roller 51 of the arm 49, causing the inner end of said arm to be moved outwardly and the outer end of said arm to be moved, so that tension will beapplied to the band 46, which will be brought to engagement with the drum 45, causing the cable drum 41 and the gear 15 tobe locked to operate in unison, the drum- 41 rotating at the same speed and in the same direction as the gear 15.

This provides means whereby powerful clutching action may be imparted between the band 46 and the drum with a comparatively small amount of energy being imparted to the lever 64, and provides means whereby a small amount of manual energy is required to operate what I shall term the power clutch member comprising the band 46, the lever.

49 and the power driven cam 62. The members 19 and '21, together with the cam 26 and the lever 28, constitute what ,I shall term the 'manually controlled clutch member.

Sometimes it is desirable to operate the drum in one direction only, in which case the inions 37 are removed in the manner hereinefore described, thereby eliminating the wear: between the said pinions and their (50- actin gears, as well as the noise created there y, and also the wear between the clutch member 38 and the hub of the spider 35.

Thus it will be seen I have provided a reversible cable drum which is particularly 3 adapted to be used on that type of an excavating machine havin a boom on which are mounted the various 'nds of excavatmg buckets, so that the said drum may be ,utilized for-operating the various devices, and which is very compact, especially in length, as the stationary spider is mounted within the flange of the clutch member and also the internal and spur gears, the clutch members for setting the drum and driving er in fixed relationbeing mounted within the flange of the gears.

This compact arrangement is a very desirable feature in a device of this kind, inasmuch as the width of the entire excavating machine may be materially thereb decreased, decreasing the cost of the mac 'ne as well a as the weight.

Another advantage of my device consists in being able to easily and quickly throw the'reversing mechanism out of operation when so desired.

Another advantage of the device lies in the easier manner in which thev controlling devices may be operated; This is also every desirable feature, as in eacavating -machmes of this classquite a large number of lever devices have to be operated.

Another advantage of my device lies in roviding means whereby the drum may e operated in a reverse direction at a higher speed than the driving gear.

from the reverse gears,- it being desirable torake the bucket mat a considerablyv higher speed for-the purpose of cutting down the operating time as well as imparting momentum to the bucket for throwing it into opera'tive position and to eliminate the necessity of an extra back line.

-. I claim as my invention:

1. A reversible winch comprising a support, a shaft fixedtherein, a driving gear rot'atively mounted on .said support, having an internal gear secured thereto, a spider fixed to said shaft having laterally projectmg pins, a pinion for each of said pins in mesh with said internal gear, a clutch memadjacent to said spider, said clutch member This is especially desirable when the device is used being provided with a spur gear also in mesh with said pinions, .the clutch. member being mounted adjacent to the outer ends of said pins for retaining said pinions in position thereon, said clutch member and said spur gear being slidably mounted on said shaft,

a second clutch member designed to engage the first' said clutch member upon being moved inwardly, yieldable means between s'aidclutch members for throwing them out of engagement, and means for imparting inward movement to said second clutch member to cause engagement between said clutch.

members, the clutches being adapted to permit outward movement to cause said spur gear to disengage said pinions. and to provide clearance between the pinion retaining member of said clutch member and said pinion pins for the removal of said pinions.

2. A reversible winch comprising a sup-' port. a shaft fixed-therein, a driving gear rotatively mounted on said support, having an internal gear seeuredxther'eto, a spider said shaft'hav'ing laterally projectmg pins, a pinion for each of said pinsin mesh with said internal gear, a clutch member rotatively mounted about said shaft and achacent to said spider, said clutch'member being provided with a spur ear also in mesh with said pmions, the slate member being mounted adjacent to the outer ends of said pmsforretaining said pinions in position thereon, said clutch'member and said spur gear 'being slidably mountedon said shaft,

bers, the clutches beingadapted to'permitv outward movement to cause said spur gear to disengage said pinions, and to provide clearance between the .pinion retaining member of said clutch member and said pinion pins for the removal of said pinions, a drum, and means for locking said driving gear and said drum to operate in unison when the said clutch members are disengaged.

3. A reversible winch comprising a support, a shaft fixed therein, a driving gear rotatively mounted on said shaft, havin an internal gear secured thereto, a spider xed to said shaft having laterally projecting pins, a inion for each of said ins in mesh with said internal gear, a clutc member mounted to rotate about said shaft and adjacent to said spider, said clutch member being.

provided with a spur ear also in mesh with said pinions', the 'c utch member being mounted adjacent to the outer ends'of said pins for retaining said pinions in position thereon said clutch member andsaid spur gear being slidably mounted on said shaft, a secondc'lutch member designed to engage the first said clutch member upon beingv moved inwardly, y-iel'dable'means between said clutch members for throwin them out of engagement, m'eans for imparting inward movement to said second clutch member to cause engagement-between said clutch mem-- here, the last said means being adapted to permit outward movement .of said clutch member to cause said spur gear to disengage said plnions, and to- IOVlde clearance between the pinionvretaming member of said clutch member and .said pinion pins for the removal of said pinions,'a drum, means for locking said driving gear and said drum to operate in unison when the said'clutchmembersar'e disengaged, means operated by sa d driving gear for actuating the last said means and manually controlled means for actuating said gear operating means.

i 4. .A reversible winch comprising-a suport, a shaft ,fixed therein, a drivin 'member rotativel mounted on said'sha 'sa1d driving mem r including an internal gear, a spider fixed to said shaft'havmg a laterfree end of said .pin to permit the pinionto be removed therefrom. v

5. A reversible winch comprising -a support, a shaft fixed therein, a drivin memer rotatively mounted on said sha t, said drivingmember including an internal gear, a. spider fixed to said shaft having a laterally and inwardly projecting pimonsupporting pin, a pinion for saidpin in mesh with said internal gear, a clutch supporting element mounted to rotate about said shaft and adjacent to the free end of said pin, s'aid clutch element being provided with a spur gear within said internal gear and s in mesh with said pinion, a cable drum rotatively mounted on said shaft, having a' clutch member to coact with the first said clutch member, means for causing said clutch members to be brought into clutchmg engagement, the clutch supporting element being adapted to slide outwardly from ort, a shaft fixed therein, a driving memer rotatively mounted on saidshaft, said drlv ngmember including an internal gear, a spider fixed to said shaft having a laterally an inwardly pro ecting pinion supporti-n pm, a pinion for'said'pin in mesh with said internal gear, a clutch supportin element mounted to rotate about said sha and adacent to the free end of said pin, said clutch -element bemgprovided with a spur gear w thin said inter al' gear and in mesh with said pinion, a cab e drum rotatively mounted on said shaft having a clutch member to coact with the first-said clutch member,

means for causing said clutch members to be brought 1nto clutching engagement,,and meanstcarried by said driving element for.

. causing said cable drum and said driving element'to be rotated in unison when said clutch devices are out of en agement.- GEORG T. RONK.

ally and inwardly projecting pinion 'supporting (pin, a pinion for said pin 1n mesh with sai element mounted to rotate about said shaft and adjacent to the free end of said pm, said clutch element being provlded wlth a spur gear within saidin'ternal gear and in mesh with said pinion, a cable um rotatively mounted on said shaft, having a clutch internal'gear, a clutch supporting

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