US2281797A - Centrifugal liquid separator - Google Patents

Description

May 5, 1942. M. s. POTTER CENTRIFUGAL LIQUID SEPARATOR` Filed Feb. v29, 1940 ow W I M lfm I /2 f 2 MQ/V r 2 f d f w a 2 f M 2 y l l J all m Vf Ji/v2@ 4 4R 7@ a w m 2@ Patented May 5, 1942 CENTRIFUGAL LIQUID SEPARATOR Miles S. Potter, Waterloo, Iowa, assignor to Associated Manufacturers, Inc., Waterloo,

Iowa

Application February 29, 194-0, Serial No. 321,514

1 Claim.

My invention relates to improvements in centrifugal liquid separators, and one object of my improvements is to provide in the rotary mechanism thereof means for stabilizing the rotation of the separator bowl, including a separable sectional shaftJ therefor having a plurality of antifriction bearings, and having adjustable basal supporting means.

These and other improvements in the assemblage will be hereinafter described and claimed,

and illustrated in the accompanying drawing.

It will be understood that various changes and improvements may be used in equivalence in the machine, without departing from the inventions therein or the scope of their protection as claimed. Fig. 1 is a frontal elevation of my improved centrifugal separator and its driving means, with parts thereof removed or sectioned. Fig. 2 is a top plan, on a larger scale, of the resiliently controlled connections between the I with removably connected basal members Id,

and also has at the right a similar pair of shod legs Ic and basal members le, except that the latter pair Ic are projected at a lesser angle relative to the support for the purpose of maintaining the stability of the connected motor and separator.

The base-plate Ia has a central upwardly directed sleeve 3a (see Figs. 1 and 5). Referring again to Fig. 1, the numeral Ib denotes a hollow vertical standard fixed on the left-hand part of the base-plate Ia, and a housing 2a, open at the right, includes said standard, while both are integral with and support at the top an open top cylindric housing part 3 with bottom closure apertured to seat therein a cylindric housing I8 for an anti-friction bearing device I9. The bottom wall of the housing 3 has an aperture containing a removable screw-threaded plug I'I, and is also apertured to seat a depending drain-tube I f for the housing to discharge below the tabular plate Ia. A separator bowl 20, shown without interiorly assembled separator disks, has a part of its wall broken away, with the upper portion of the vertical shaft 2 extended thereinto, and said shaft traverses downwardly vertically said bearing device I8-I9, and its lower end part is recessed downwardly at I4.

As shown in Fig 5 sleeve 5 is removably secured in the outer sleeve 3a and secured thereto by a set-screw 4, and also by a base-plate 3b, beneath, secured by screws to the inner sleeves. A downwardly directed member 6 with medially downwardly offset part medially apertured and interiorly threaded, seats therethrough a short threaded shaft 'I whose upper end traverses the member 6 and bears against the lower end of the shaft part IIa. The shaft l is threaded to seat in a lthreaded seat in the member 6 to adjustably support the alined shaft parts II-I2 and 2. A cross handle 8 mounted through the lower end of the shaft l, may be turned to adjustably support the said shaft sections and the bowl 2t above. Immediately above the sleeve 3a a circumferentially grooved belt-wheel I3 is fixed on the shaft part Il, and carries in its V-shaped groove one end part of a V-belt 28` shown in cross-section in Fig. 5.

As the lower end of the upper shaft part 2 is downwardly bifurcated, at I4, it seats removably and loosely on a cross-pin I5 xed across the enlarged bearing member I2 on the lower shaft part II, permitting slight play to the shaft 2. A short apertured lug 2| is xed on the housing 3 to the right, and a longer lug 25 has its left-hand end xed on the rear wall 2a of the lower housing just above the member I4 and spaced directly below the upper lug 2l, with connecting end means therebetween, being a vertical member 23 having end lugs, of which the upper lug seats a i fixed pin 22 in the upper angular part of said member 23, and the lower lug seats another pin, 271., whereby the member or hanger 24 may limitedly rock to and fro. The member 23 is fixed on a connection 2m on a motor housing 25, and the motor has a depending shaft 26 upon whose lower end a belt-wheel 21 of greater diameter than the other smaller belt-wheel I3 is mounted, both said wheels having the V-belt 28 reeved thereabout, preventing escape of the belt by reason of looseness.

I have, however, supplied additional means for keeping the V-belt taut irl' spite of wear or lengthening due thereto. This means is illustrated in Figs. l and 2 which is shown and claimed in my divisional applications Serial Number 362,110, filed October 21, 1940. In Fig. 2 a lug 2b is xed upon one wall part 2a of the separator housing, and an arm 2d has one end rockably mounted on a bolt 2c traversing the lug and directed toward the motor casing 2T,

obliquely. A similar arm 2g has one end like wise rockably mouted on a bolt 2k traversing the lug 2l xed at one end of a bar 24, which is in turn Xed on and along a similar bar 2m iixedly mounted on the motor casing 25, above the beltwheel 21. The outer ends of the arms 2d and 2g are adjustably pivotally connected by a bolt 2e. A fixed arm 2n on the opposite end part of the bar 2li is apertured, and a short rod has one end loosely traversing said aperture. A nut 21' is mounted adjustably on said rod to bear upon the rear face of the arm 2n. A coiled tension spring 2f has bent end parts of which one is connected to the hither end of the rod 20, and the other bent end connected to vsaid pin 2e. In normal use and position, the arms 2d and 2g are angularly disposed toward each other as shown. It will be seen that undue vibration of the motor is dampened by reason of the action of the spring 2f on said arms, and at the same time the spring 2f exerts a resilient action upon both the motor and the V-belt 28, tending to prevent escape of the belt from the V-groove in its edge in the event of wear or lengthening of the belt. The ball bearings at opposite parts of the connected shaft elements also tend to obviate lateral vibrations of the shaft and the separator bowl 20, when jointly rotating at high speeds, and the separable assemblage of the shaft sections as connected at the cross-pin i5 gives necessary exibility thereto in the maintenance of the shaft in its bearings and in coaction therewith.

I claim:

In a centrifugal liquid separator, in combination, a base-plate having a plurality of depending legs, and having an upwardly directed hollow standard fixed on and at one side of the plate and terminating upwardly in an upwardly cupped housing, cylindrical, and having a central circular bottom-apertured seat, and having voiset therefrom a drain pipe traversing said seat removably on the inner rim upper face olf the bottom of the housing and whose lower part depends through said apertured seat, the inner upper part of the sleeve being offset inwardly to provide an inner shoulder supported removably on the inner rim, said base-plate having a central integral upwardly directed cylindrically hollowed part, a cylindrical liner mounted removably in said hcllowed part and having circular upper and lower recesses therearound in its inner wall, like ball-bearings mounted movably in said recesses, a centrally apertured plate secured coaXially and removably across the lower face of the base-plate, a cross-bar medially oiset downwardly, having its end parts secured removably dependingly across the lower face of the base-plate and medially upwardly apertured and threaded centrally, an axial shaft positioned within the cylindrical liner and spaced laterally therefrom and with its upper part above the liner widened in diameter, said ball bearings being non-rotatably mounted on the lower diminished part of the shaft, said lower part of the shaft below the lower bearing plate terminating above said offset cross-bar, a downwardly directed threaded stem seated rotatably in the medial apertured part oi the cross-bar to depend therefrom and to contact the lower end of said stem, a nut mounted on said threaded stem below the cross-bar for vertical adjustments of the shaft, said axial shaft widened upper part being downwardly cupped, a rod crossing said cupped part and end-secured therethrough, an upper shaft section alined with the lower shaft part and having its lower termination transversely grooved to seat astride said rod, the upper shaft section extending upwardly and seated axially through said upper ball bearing, U-spiings mounted contactingly between said ball bearing and the abutting inner wall of the tubular sleeve, a liquid separator bowl mounted axially and removably upon said oiset sleeve mounted on said bowl bottom part, and means mounted on the lower shaft section to rotate it at a desired speed.

MILES S. POTTER.

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