US1339272A - Centrifugal apparatus with planetary movement - Google Patents

Description

W. MAUSS.

CENTRIFUGAL APPARATUS WITH-PLANETARY MOVEMENT.

APPLXCATION FILED SEPT.4, 1919. A.

1,339,272. A Patentd May 4,1920.

WILI-IELM MAUSS, or JQHANNESBURG, TRANSVAAL, SOUTH AFRICA.

GENTRIFUGAL APPARATUS. wrrn PLANETARY MOVEMENT.

Specification of Letters Patent.

Patented May 4, 1920.

Application flled september 4, 1919. Serial No. 321,708. I

To all whom it may concern:

Be it known that I, WILHELM MAuss, sub gect of the King of Great Britain residing at Cullinan Buildings, Main and Simmonds streets, Johannesburg, Transvaal Province of the Union of South Africa, have invented certain new and useful Improvements in Centrifugal Apparatus with Planetary Movement, of which the following is a specification.

The present invention has reference to centrifugal apparatus of'the kind in which two -or more bodies such as separating drums are rotated at high speed about a central axis and are also rotated at a relatively slow rate about their individual axes.

In such. apparatus the unbalanced centrifugal tendency of each of the bodies due to its rotation about the central axis causes excessive wear ofthe bearings in which they rotateand of the gear wheels by which they are rotated. It is the object of the present invention to overcome this difiiculty.

In the accompanying drawings Figure I is an elevation, partly sectioned, of a jecting from a collar 26 rotatably mounted planetary separator with two drums; Fig. II is a plan of the same also partly sectioned- Fig. III is a diagram illustrating the operation.

' 1 is a shaft which isrotated athigh speed and carries the drumhousing. Said housing comprises an upper plate 2, a lower plate 3, two side ties 5.

The shaft, drum housing and drums rotate as a whole about a centralaxis 9, as indicated by the arrow A, FigLII. The individual drums are also rotated aboutytheirf own axes 10 as indicated'by the arrows 1B.

The mixture to be treated is fed into the drums from the hopper 11 and segregates in the part 12 of the drum remote from the main axis the inwardly directed lip 13, whilevthe separatedsolid is carried by the individual rotation of the drum near to .themain axis 9, where it is parted from the drum and.

" passes out through the discharge apertures 14:. p

The centrifugal tendencyof each drum arcuate drum seatings 4, and. Bolts 6 passing through the. upper and lower plates 2, 3, and the drum 9. The liquid .flows away overby bodily movement with it of the means by which it is retracted.

1t), 15 indicate straps which pass about the periphery of the drums remote from the main axis 9. To each end of each strap a link 16 is pivoted bya, pin 17 and the links of the pair on each sideare pivoted by pins 18 to the strap 19 of an eccentric sheave 20. The straps 15, "the links 16 and the straps 19 thus form an endless loop or chain. The length of said chain can be regulated by adjusting screws 21.

The eccentrics 20 are fast with gear wheels 22 revolubly mounted on the housing and revolved by rolling about a central pinion 23., Said pinion 23 is mounted in bearings in the drum housing and is prevented from turning by an arm 24 fast with it. Said arm engages a fixed part such as the pin 25 pro-.

turning but also control gyration of the machine as a whole.

In Fig. III the circles 29 indicate the loci of the pins 18 connecting the link 16 to the eccentric straps 19. The arcs 30 indicate the loci of the pins 17 connecting -vthe, links 16 to the straps 15, while; the

straight lines 31 are the loci of the centers vof the arcs of the straps 15, and. alsoin part the loci of the axes 10 of the drums 7. Four principal positions of the parts are shown respectively by full thick lines, full thin'lines, dotted lines and chain dotted lines;v the corresponding positions of the links '17 and 18 and centers of the arcs 15 beingindicated. in the first position by the letters 0, in the second position by the letters D, in the third pos tion by the letters E and in the fourth. position by the letters F. r V

The circles 29 are substantially tangential to a tangent e. 31%), between the arcs 30. 1 As the result the maximum effective length of the chain system, or in other words, the greatest separation of the straps tra'l and' the drums merely begin to lift from larly the energy consumptionissinall; a substantial proportion of the .energyex-' ters of the .ares 15 reciprocate between the outer extreme positions D and the inner extreme positions F. From position C to position E the chain is circulated clockwise,

while from position E to position C the circulation-is reversed or anticlockwise.

"The combined effect of this virtual lengthening and shortening ofthe chain and its *rec'iprocatory circulating movement 1s uti- The length of the chain is so regulated by the adjustment 18 that-thestraps pickup the -drums7 at about position E. At this position the circulating movement is neuth eirseats'e, From *Eto C the drums remain'lift ed and are also rotated counter cloekwiseby 'the circulation of the chain. At point' C the circulatory motion has I ceasedand the drums are thus deposited on them seats Without rotational movement.

From C to E the straps clear the drums andiare-cireulated clockwise, whereby they ment of the drums.

While Fig; III shows relatively large Y movement of "the parts, it is only necessary in" practice to lift'the drums, say one 812(- teenth o-f an inch, and the circulatory .movement is correspondingly small. The "movements are, however, repeated frequently and produce the effect of a' continuousslow rotation of the drumsin one directions Owing both to the small individual 'movements of the drums-andthetoggle action of the eccentrics on the chain, the force exerted bythe-eccentrics can be kept 'Within reasonable limits even with exceedingly heavy'centrifugal forces exerted by the drums. Simipended in retracting and rotating the'drums isnrecoveredin the reverse movement of restoring them to their'seats andarresting their rotation.

Iielaim":

1. Ifi centrifugal apparatus, a number of bodies-having planetary move1nent, seat1ngsfor 'the" bodies opposing their centrifugal I movement; an endless flexibleloop embracingisaid bodies,- means'to deform the loop periodically to retract said bodies from their seatingsnfor "rotation, and to circulate the loop While the bodies are so retracted."

2"." In centrif1igal apparatus, a number of bodies havlng planetary movement, seatings fer the" bodies opposing "their centrifugal movement, an endless flexibler loop embracing said bodies, and means periodically to r 1 their seatings, said means also 1 bodies remotely from the center of rotatending between the bodies, and means for movinga point'in said portion-in a circle having a common tangent With the-bodies:

5. In centrifugal apparatus,-anumber of bodies having planetary movement, seatings for the bodies opposing=their centrifugal movement, strapsadapted to embrace said tion, links connected to'said straps and mechanism movlng the ends of saidllnks Wltll a clrcular movement tangentlal to their almed L position. are restored to position for the next move- 6. In a centrifugal apparatus, anumber of bodies having planetary movement, seatings for the bodies opposing their'centrifugal movement, straps adapted'to embrace said bodies-remotely from the center of rotation, rotatable eccentric sheaves, straps on other direction When the bbdyl straps are loose. V

8; In centrifugal apparatus,- a number of bodies having planetary movement, seatin-gs for the bodies' opposing their centrifugal movement, an endless flexible loop rernbraeing saidbodies, means periodically to "de form the loop 'Wherebyit is alternatelycontraeted to retraet 'the bodies from the seats v ingsand enlarged to clear the *bodies, said means also circulatingxthe loop .to :start the bodies to rotateizfrom rest at about the beginning ofthe retraction and to :stop their rotation as the strap clears them. I; 1

.9. Imeentrifugahapparatus, 'a-rotatable housing, bodies rotatably carried in said housing symmetrically about the axis of rotation thereof, seatings for said bodies in the housing, a separate strap ada ted to embrace the outer part of each bo y, eccentric sheaves rotatably'mounted in the housing, eccentric straps on the eccentric sheaves, links connecting said eccentric straps to the body straps, gear Wheels fast With the eccentric sheaves, and a central pinion With which said gear Wheels mesh, said pinion being rotatably mounted in the housing and means for preventing rotation of thepinion.

10. In centrifugal apparatus, a number of bodies having planetary movement, seatings for the bodies opposing their centrifugal 11. In centrifugal apparatus, a number of drums or the like disposed about a main axis of rotation, a revolving housing for the drums comprising arcuate seatings and straight ties connecting said seatings, and means for retracting the drums from their seatings for rotation.

In testimony whereof I aflix m si nature.

WILHELM lWA SS.

Images