US1762696A - Hoist - Google Patents

Description

C. F. OSGOOD HOIST Filed March 25, 1926 Patented June 10, 1930 UNITED STATES Partnr OFFICE CHARLES F. OSGOOD, OF CLAEEMONT, HAMPSHIRE, ASSGNOR T SULLIVAN MACHINERY COMPANY, A CORPGRATION 0F MASSACHUSETTS HOIST Application iled March 23, 1926.

This invention relates to hoists and more particularly to portable hoists of the double drum scraper type especially adapted to use the so-called slusher system of handling ore or the like.

rlhe main object of this invention is to provide an improved double drum hoist of comparatively small, high powered, compact character especially adapted to use with the slusher' system of handling ore or the like. A more specific object of this invention is to provide an improved double drum hoist of the portable drag scraper type having two Winding drums, as for instance, a haulage A drum and a tail rope drum, which are alternatively positively driven directly from the rotatable motor casing of a reversible, pressure fluid actuated motor of the intel-meshing gear type, improved means being provided for connecting one drum to the motor casing while the other drum is disconnected therefrom automatically in accordance with the direction of rotation of the motor. rlhese and other objects of this invention will, however, hereinafter more fully appear.

Thisinvention in one of its aspects may comprise a double drum hoist of the slusher type having two drums, as for instance, a haulage drum and a tail rope drum, driven from a common source of power. rlhe driving motor, which is preferably of the reversible pressure fluid actuated, intermeshing gear type, is preferably provided with a rotatable motor casing. The winding drums are preferably journaled on the motor casing. Either drum may be positively connected to the motor casing, the connections preferably being automatic; so that the drums are connected in driving relation alternatively in accordance with the direction of motor rotation. Operative driving connections are provided whereby the motor elements may effect rotationof the motor casing and these connections may comprise a frictionally controlled reaction gear, the latter being of such construction as to enable the motor to run freely while the motor casing remains stationary.

In the accompanying drawings I have v shown for purposes of illustration one form Serial No. 86,697.

which my invention may assume in practice.

.the section being taken substantially on line 2*?. or' Fig. l.

Fig. 8 is a detail longitudinal sectional view illustrating the motor supply passages, the.y

view being taken on line 3-3of F ig. 2.

Figs. 4 and 5 are transverse horizontal sectional views taken through the combined throttle and reversing valve, the views illustrating diiferent positions of the valve.

Fig. 6 is a detail sectional view taken on line 6 6 of F ig. l, illustrating the ratchet ring and the cooperating ratchet teeth.

In this illustrative construction there is shown a rotatable cylindrical casing l have formed therein a motor chamber 2, the opposite ends of which are closed by suitable motor heads 3 and l suitably secured to the casing l. The motor chamber 2 houses a motor, herein preferably of the pressure iiuid actuated reversible intermeshing gear type, generally designated 5, to be hereinafter fully described and the motor, npon rotation of the fasing, rotates at the same rate as and with the casing. The casing l is supported on a frame 6 having end brackets 7 and 8, the latter being detachably secured to the frame (i by 'ieans of bolts 9. The frame 6 is adapted to bc connected to a mine column, turntable, or other suitable support during operation thereof in a well known manner. As shown, the end of the rotatable casing l, which is remote from the motor chamber 2, has secured thereto as by bolts l0 a transverse head member ll, the member ll iaving formed integral therewith a stub shaft l2 arrano'ed coaxially with the motor anis and suitably journaled in spaced alincd ball bearings 13. It will also be noted that the motor head 3 has formed thereon a hollow shaft portion 14 suitably journaled in ball bearings l5 carried within the end bracket 7.

A more specific description of the motor 5 will aid in making the illustrative embodiment of my invention more easily under- `3 and 4. As illustrated, disposed radially about the motor gear 16 is a plurality, herein four, of small motor gears or planets 18each of which is secured to a shaft 19 disposed longitudinally of the motor casing and journaled at its opposite ends in ball bearings 2O carried Within the motor heads 3 and 4. Here itcivill be noted that pressure fluid, preferably laden With lubricant, is supplied to the motor 5 Vfrom a suitable supply line 21` through a combined throttle and reversing valve 22, the latter being controlled by a suitable control handle 23. The valve 22 has a central chamber 24 and is adapted to supply motive fiuid from the supply line alternatively through either of a plurality of superimposed passages 25 and 26 formed in and disposed longitudinally of a supply conduit 27, the latter projecting through the hollow shaft 14 and being secured to a casing 28 Within which the valve 22 is rotatably mounted. The casing 28 is secured as by suitable screws29 to the end bracket 7 Moreover, the valve 22 is provided With a plurality of superimposed passages oi' ports 3() and 31v which are adapted to connect alternatively the chamber 24 with the supply passages 25 and 26. The valve is also provided with a plurality of superimposed peripheral grooves 301 and 31a adapted to establish communication between the passages 25, 26, alternatively and a downwardly directed exhaust passage 32 formed inthe valve casing 28. Thus it will be noted that the valve 22 is made reversible and adapted when the controlling handle thereof is suitably manipulated (see Fig. 4) to supply motive fluid to the passage 26 and receive exhaust fluid from the passage 25, While when the valve is turned to the position shown in F ig. 5 it is adapted to supply motive fluid to the passage 25 and receive exhaust fiuid from the passage 26, neither of the passages 25, 26 receiving fluid when the valve is in its iiitermediate or neutral position. Here it will be observed (see 3) that, with the valve 22 in the position illustrated in Fig. 4, the motive fluid flowing through passage 26 passes out through lateral ports 33 formed in the conduit 27 into an annular passage 34 formed in the motor head 4, and that from this annular passagethe pressure fluid is supplied through passages 35 to longitudinally disposed passages 36. These passages 36 extend between the motor rotors (see 2) and their distributing ports 37 supply motive fluid to the rotor teeth at a plurality of points along their length and substantially opposite the line of mesh of the cooperating motor gears 16 and 18; As shovvn, a part of the exhaust motive fluid from the motor gears 44 formed in the motor head 3, the annular passage 44 in turn coi'iimunicating through lateral ports 45 formed in the stationary shaft 27 with the longitudinali dis nosed su )pl e passage 25, the latter being open toexhaust through the groove 30a -iii the valve v22 and the exhaust passage 32. Conversely, when the throttle valve 22 rotated into its reversing position, it Will be evident that motive fluid Will be supplied through the passages 42 and ports 41 and a'portion thereof exhausted through ports 37 and passages 36; While when the valve is in its intermediate or neutral position no air Will flow to the motor.

As shown, suitably secured to an extension 46 formed integral With one of the shafts 19 is a. motor .pinion 47 Which meshes With an internal gear 48 keyed at 49 to a horizontal shaft 50 disposed longitudinally of the casing 1, the 'shaft 5() being suitably journaled in ball bearings 51 and 52 carried respectively by the motor head 4 and the transverse head member 11. Formed on theshaft 50, at the end thereof opposite from the internal gear 48, is a spur pinion 53 Which meshes With a spur gear'54 keyed at 55to a longitudinally extending shaft 56 suitably journaled in ball bearings 57 carried by the transverse head member 11. The shaft 56 has secured there-` to, at the end thereof opposite from the gear 54, a spur pinion 58 Which meshes With a spur gear 59 likewise suitably journal-ed on the head member 11. The gear 59 meshes with an internal gear 60 formed on a rotatable reaction member 61. The latter has formed thereon a hub portion 62 suitably journaled in a bearing sleeve 62a carried by the end bracket 8, the hub portion 62 also forming a support for the ball bearings 13 in which the stub shaft 12 is journaled. As shown, the reaction member 61 is externally grooved at 63 and cooperating With the bottom surface of this groove is a brake band 64. From the foregoing description it Will be evident that When the reaction member 61 is held stationary by the brake band 64 and when motive fluid is suitably supplied to the motor 5, the motor casing may be driven in opposite directions; and that when the'brake band 64 is released the motor casing may remain stationary during running of the motor.

In accordance with this invention, a pair of winding drums and 66 are provided, as for instance, a haulage drum and a tail rope drum; and thesev drums are rotatably mounted on the outer periphery of the cylindrical motor casing l. The winding drums 65 and 66 have respectively formed thereon externally grooved brake drums 67 and 68 with which brake bands 69 and 70 respectively cooperate and these brake bands are adapted to control drum rotation. rIhe brake drums 67, 68 form a chamber 7l Within which is disposed a longitudinally slidable ratchet ring 72 splined at 73 to and surrounding the casing l. This ratchet ring has on its opposite sides reversely disposed ratchet teeth 74 and 7 5 respectively engageable with teeth 76 and 77 carried on the drums 65 and 66 respectively. The ratchet teeth carried by the respective members are provided with cam surfaces 7 8, 7 9, 8() and 8l in order to effect automatic lshifting of the ratchet ring. Referring to Fig. 6, it will be noted that when the motor casing and consequently the ratchet ring 72 are rotated in one direction the cam surfaces 8() formed on the teeth 7 4 of the ratchet ring` engage the cam surfaces 78 formed on the ratchet teeth 7 6 carried by the winding drum 65; and consequently as t-he cam surfaces 80 ride over the cam surfaces 7 8 the ratchet .ring is automatically shifted, thereby connecting the ratchet teeth 7 5 of the ratchet ring with the ratchet teeth 77 carried by the winding drum 66. When the motor casing and ratchet ring are rotated in the opposite direction the cam surfaces 7 9 and 81 formed respectively on the drum 66 and the ratchet ring will effect shifting of the latter in the opposite direction.

In the operation of this improved construction it will be observed that after motive fluid has been supplied to the motor and after the latter has come up to speed, the brake band 64 may be applied, holding the reaction member 6l and consequently the internal gear 60 against rotation. The casing l is then drivenin one direction from the motor pinion 47, through internal gear 48, spur pinion 53, spur gear 54, pinion 58 and spur gear 59, the latter rolling around the stationary internal gear 60, and consequently effecting bodily rotation of the casing 1. Vhen the casing l is rotated, the ratchet ring 72 will automatically shift into engagement with the drum which is adapted to be driven during the particular direction of rotation of the motor. When it is desired to drive the other drum, the brake band 64 may be released and the motor reversed and brought up to speed, after which reapplication of the brake band 6a will cause rotation of the motor casing in the opposite direction and accordingly the ratchet ring 72 will automatically shift into engagement with the other drum. If it is found that the load on the motor is too great when the ratchet ring engages the ratchet teeth on the drum to be driven, the operator can release the band 64 immediately after the ratchet ring has shifted and gradually reapply the same to thereby prevent stalling of the motor. These and other operations of the improved hoist Will be clearly apparent to those skilled in the art.

As a result of this invention it will be noted that an improved portable double drum scraper hoist is provided wherein the winding drums are connectable directly to the rotatable motor casing, the drums being alternatively driven by the motor casing automatically in accordance with the direction of motor rotation. It will further be noted that an improved double drum, portable hoist is provided especially adapted to use with the slusher system of mining, the hoist being extremely light in weight, of comparatively high power, and o1' extremely compact structure. These and other advantages of the invention will be clearly apparent to those skilled in the art.

Vhile I have in this application specifically described one form which my invention assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms withoutdeparting from its spirit or the scope of the appended claims.

Vhat I claim as new and desire to secure by Letters Patent is:

l. In a hoist, a casing rotatable in opposite directions and having a motor chamber, a reversible motor disposed in said chamber and rotatable at the same rate as and with said casing, said motor having a relatively movable reversible motor rotor element rotatable by the power of said motor selectively in either -direction upon its axis, power transmission means between said inotor rotor ele* ment and said casing whereby the latter may be rotated in either of opposite directions, a winding drum surrounding said casing and rotatable relative thereto, and clutch means for automatically connecting said drum to said casing on rotation of said easing;` in one direction.

2. In a hoist, a casing rotatable in opposite directions and having a motor chamber, a reversible motor disposed in said chamber and rotatable at the saine rate as and with said casing, said motor having a relatively movable reversible motor rotor element rotatable by the power of said motor selectively in either direction upon its axis, power transmission means between said motor rotor element and said casing whereby the latter may be rotated in either of opposite directions, a. pair of relatively rotatable winding drums surrounding said casing and rotatable relative thereto, and clutch means foralternatively connecting said drums to said casing automatically in accordance with the direction of casing rotation. v

3. In a hoist, a casing rotatable in opposite directions and having a. motor chamber,.a reversible motor disposed in said chamber and rotatable vat the same rate as and with said casing, said motor having a relatively movable reversible motor rotor element rotatable by the power ot said motor selectively in either direction upon its axis, power transmission means between said motor rotor element and said casing whereby the latter may be rotated in either of opposite directions, a

pair of relatively rotatable winding drums surrounding said casing and rotatablev relative thereto, and means including an element disposed between said drums -and secured against relative rotation with respect to said casing for alternately connecting said drums to said casing automatically in accordance Vwith the direction of motor rotation.

4. ln a hoist, acasing rotatable in opposite directions and having a motor chamber, a reversible motor disposed in said chamber and rotatable at the same rate as and with said casing, `said motor having a relatively movable reversible motor rotor element rotatable by the power ot said motor selectively in either direction upon its axis, means for producing rotation ot said` casingin either or opposite directions by said motor rotor element,

said means including planetary transmission mechanism between said rotor element and said casing, a reaction member cooperating` therewith, and friction controlling` means for said reaction member operative when released to permit rotation of said motor rotor element without producing rotation of said casing and when held to produce rotation of said casing by said motor rotor element, a pair of relatively rotatable winding drums surrounding said casing and rotatable relative thereto, and clutch means for alternatively connectingsaid drums to said casing auto- 1 iffeaeee ftors rotatable by the power oi said motor in either of opposite directions on their respective aires and vhoused in said casing and bodily rotatable with saidA casing, and a power transmission connection between said rotors and said casing whereby the latter may be rotated in either of opposite directions, a pair of relatively rotatable winding drums surrounding said casing and rotatable relative thereto, and clutch means for automatically connect- -one drum to said casing and tor disconnecting the other therefrom in accordance with the direction of motor rotation. n

lnV testimony whereof l anni my signature.

CHARLES F. GSGOOD.

element operative when released to permit.v

movement of said motor rotor element without producing rotation ot' said casing and when held to produce rotation-olil said casing by said motor rotor element, a pair ot relatively rotatable windingL drums supported on CERTIFICATE 0F GGRRECUON.

Patent No. 1,762,696. Granted June 10, 1930,10

4 CHARLES F. 050000.

lt is hereby certified that error appears' in the printed specification of the above numbered patent requiring correction as follows: Page 1, line 4, before the article "the" insert the word "witl1"; page 2, lines 2 and 3, for the word "portions" read partitions, and line 7l, for "chamber" read chambers; page 4, line 21, claim 3, for "alternately" read alternatively; and that the said Letters Patent should he read'with these corrections therein that the same may conform to the record of the case in the Patent Giice.

Signe and sealed this 5th day of August, A. D. 1930.

Wm. A. Kinnan, (Seal) Acting Commissioner of Patents.

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