US2097347A - Vibratory motion producing apparatus - Google Patents

Description

@et 26, 1937. wfr. SHALER VIBRATORY MOTION PRODUCING APPARATUS Filed Feb. 28, 1956 2 Sheets-Sheet l INVENTOR. WILUAM T. SHALER.

ATTORNEY.

Oct. 26, 1937. w. T. sHALx-:IR 097,34?

VIBRATORY MOTION PRODUCING APPARATUS Filed Feb. 28, 1936 2 Sheets-Sheet 2 INVENTOR.

WILLIAM T. SHALER.

BY SKWKM 624W ATTORNEY.

Peteeted er. ze, 1931 UNlTEDsTATEs VIBRATORI MOTION PaonUoiNG APPARATUS william T. signer, silver creek, N. Y.

.Application February 28., .1936, Serial No. 66,261

I 9 claims. (ci. "x4- 61)A This invention relates to mechanisms for producing vibratory motionand particularly to such mechanisms ofthe rotary power driven type for vibrating other apparatus.`

5 vidAmong the objects of my invention are to proe: I An improved vibratory motion producing mechanism.

An improved rotary mechanism for producing vibrations of relatively high periodicity.

A vibratory-motion producing unit mechanism adapted in an improvedmanner to be used in multiple to increase the vibratory effect produced in an apparatus vibrated thereby or to apply vibratory motion to a vibrated apparatus ofgreat dimensionalextent. l

Other objects will be apparent to those skilled in the. art to which my invention appertains.

My invention is fully disclosed in the following description taken in connection with the accompanying drawings, infwhich:

Fig. 1 is a side elevational view of an apparatus embodying my invention;

Fig. 2 is.a top plan view of the apparatus of Fig. l;

Fig. 3 is an end elevational View to an enlarged scale taken from the plane 3-3 of Fig. 1 but outwardly beyond the end of a beam element illustrated in that figure and broken ofi in the drawings:

Fig. 4 is a view inl longitudinal section to an enlarged scale of a unit of apparatus illustrated in plan view in Fig. 2;

Fig. 5 is a fragmentary sectional view taken from the plane 5-5 of Fig. 4;

Fig. 6 is a fragmentary view similar to a part of Fig. 2 illustrating a modiication;

Fig. 7 is a view illustrating in section the part.

of the modification of Fig. 6, the view corresponding to a part of Fig. 4 to a smaller scale illustrating said modication.

Vibrators of the rotary mechanical type as heretofore proposed have been hunted in the force ofv the vibratory impulse and thereforein the power which they can develop. I have found that to produce vibrations of great power having a. given frequency and amplitude, it is impractical merely to increase the dimensions of a known and practical vibrator producing less power at such frel quency and amplitude.

In the present invention, however, I obtain this result by utilizing in multiple 'a number of like vibratory units having each the desired frequency brations produced by the individual units are added together without change of the amplitude direction or frequency thereof.

In the embodiment of my invention' illustrated and described herein, the several vibratory units are disposed in linear arrangement and transfer their vibratory motions to a common base in the form. of an elongated beam whereby the vibratory motion can be transmitted from the beam to an apparatusv to be vibrated over a relatively 10 great extent or area thereof.

Referring to the drawings I have shown at 8 the beam in the form of a rolled section I-beam and have indicated generally at I2-I 2 two vibratory units mounted thereon, although as will be- 15 -come apparent'hereinafter, for a greater length of beam 8, more than two units may be employed. Each unit I2 comprises a mechanism enclosing housing I3 consisting of opposite generally cupped-form end-housings I4 and I5 secured at 20 their open ends upon an intermediate housing I6. In-order to accurately align certain shafts and gears within the housings, in a manner to be described, the housings are secured together and aligned in the following manner. The interme- 25 diate housing I6 has an annular cylindrical con- 'cave shoulder I'I formed thereon and a like shoulder I8 axially spaced therefrom and oisetradially. The housing I4 has an annular 'convex cylindrical shoulder I9 and the housing I5 has a 30 like shoulder 20, the shoulders I9 and 20 being telescopical over the shoulders I 'I and I8; and peripherally of the intermediate housing I6 it is provided with a flange 2I having a plurality such as six threaded bores therein; and bolts 23 are 35 projected through elongated bosses 24 peripherally of the housing I4 and threaded intothe threaded bores 22, to secure the housing I4 on the intermediate housing. The housing I5 is similarly secured to the intermediate housing by 40 bolts 25 projected throughV elongated bores 24 and threaded into corresponding ythreaded holes 26 in the intermediate member. The housings I 4 and yI5 have, adjacent their open ends, bores 21-21 of relatively large diam- 45 eter in which t the outer raceways 28 of inner bearings indicatedv generally by the reference characters 29, the bores 21 being of su'ch size as Y to support the said outer raceways 28 but to permit them to oat axially in said bores. 50

The inner raceway 30 of the bearing 29 is telescoped over the cylindrical shank portion 3l of a weight head comprising, besides the shank 3|,

a radially outwardly extending offset weight 33.

The weight head shank 3i in the housing I5 55 is telescoped upon a shaft 34 and secured thereto by a key 35 and the corresponding shank 3l in the housing I4 is telescoped upon a shaft 36 and secured thereto by a key I1.

Inwardly of the shanks II-ll, the shafts 34 and I6 respectively have thereon, preferably integral therewith, gears Il and 39 intermeshed.

The shank portions 3| have shoulders 40-40 thereon against which the inner raceways 30-30 are clamped by sleeves 4I-4I `telescoped over the shafts respectively and having flanges 42-42 abutting the raceways. On the shaft 34, the inner raceway 43 of an outer bearing shown generallyat 44 is telescoped and clamped upon the outer end of the sleeve 4I by a nut 45. The outer raceway 4t of the bearing 44 is telescoped into a bore 41 of the housingv Ii and is clamped therein against a shoulder 4l by a bead 49 of a cover plate 50 which bead is telescoped into the-outer end of thel bore 41 and which cover plate has a flange il bolted to the housing II by bolt 52-52.

'ihe shaft 34 is thus rotatably mounted in the hearings 20 and 44 and secured against longitudinal shifting by the bearing 44.

The shaft I6 is similarly rotatably mounted in its bearing 29 andin a bearing shown generallyat 53, the inner raceway 54 being locked on the shaft between a sleeve 4I and a nut 55 on the shaft and the outer raceway i6 being clamped on the housing I4 by a cover platev 51, the cover plate at this -end of the mechanism having an aperture Il therein outwardly through which extends-"an end portion l! voi? the shaft I6 provided with a key way it for a purpose to be described. l

VThe housing I4 has preferably formed integrally therewith, feet II-GI and 82-62 and the housing I5 has similar corresponding feet 63--83 and 04-44.

-'.'l'he above described unit I2 may be referred to as a right-hand unit being mounted upon the I-beam l on the right-hand end thereof as viewed in Figs. l1 and il. A like unit Ila but having the housings I4; I5, and I6 offset in the opposite direction as shown in Fig. 2,.is provided and the two units are mounted on the I-beam l with their projecting shaft ends 59-59 axially aligned as shown in Figs. 1 and 2. The unit I2a may be referred to as ya. left-hand unit. 'I'he two units I2 and I 2a are mounted upon the upper ange I of the I-heam 8 in the following manner, spaced longitudinally thereon. Reinforcing elements 65-65 are provided on each side of the web of the I-beam 8 comprising web 1 or gusset portionstl and upper horizontal flange portions $1. The upper surfaces of the flange portions 61 are disposed in the plane of the upper side of the I-beam upper flange I0 and extend laterally therefrom on each lside thereof and the web portions 66 connect the outer ends of the flange portion 81 with the outer edges of the lower I-beam flange 9. 'I'he flanges 01-'61 thus form lateral continuations of ytheI-'oeam upper flange I0 and are braced for support upon the lower I-beam flange l. The elements 65 are preferably welded to the I-beam along the contour of the underside of the I-beam upper flange, web and'lowerriiange. 1 v

A sole plate B4 is secured to the unit I 2 (and a like sole plate a is secured to the unit I 2a) by bolts 68--89 projected through perforations in the sole plate 68 and screwed into the threaded feet 6I, 62, 6l, and I4 of the unit. The sole plates 68 and 68a are then rigidly secured to the I-heam by bolt`10-10 projected through the flanges 61-01 and through aligned perforation.: in the sole plates, and nuts 1I-1I on the bolts 10--10 are drawn up to rigidly secure the sole plates in position on the I-beam. A

A drive shaft 12 having thereon a belt pulley 13 is rotatably mounted in spaced bearings 14-14 rigidly secured upon stools 15-15 which in turn are rigidly mounted upon the upper flange Il of the I-beam 8 by bolts 16-10. The opposite ends of the shaft 12 extend beyond the bearings 14 as at 11-11. The shaft ends 59 and 11 at each unit I2 and I2a are coupled together by flexible couplings 18-18.

In the operation of the apparatus above described, when the shaft 12 is rotated by power applied through the belt pulley 13, the rotary motion is transmitted through the ilexible'couplings 18-18 to the shaft 59 of each unit I2 and I2a which, through the gears 38 and 3,9, rotat the shaft 34 of each unit. The gears 34 and-39 are, when the unit is assembled, intermeshed in such relation that the weights 33-33 will be horizontally opposite. Therefore, when the shaft rotates, the two weights 33-33 of the unit will both be vertically above their shafts 34 and 36 and will both be vertically below said shaft simultaneously. As the shafts rotate, therefore, the out-of-balance of the weights will, for each revolution, exert an upward and a downward force impulse but will not exert horizontal impulses since the weights are then balanced.

' The two units I2 and I2a are symmetrically disposedrelative to each other and to the I-beam lso that upward and downward vertical thrusts will be exerted thereby simultaneously, respectively, and these thrusts will' be transmitted to the I-beam 8.

I have found that by the disposition of the weights 33-33 adjacent to the bearings 20-20 and by providing bearings 29 of the anti-friction or roller vtype of large diameter, and by disposing the bearings 44 and 53 'relatively remotely axially from the bearings 29, and providing these bearings also of the roller anti-friction type, the weights 33-33 may be rotated at velocities as high as 3,000 or 4,000 revolutions per minute, which is far beyond the velocities possible with vibratoryy motion producing devices of this general class.v As the weights revolve and as they vibrate their housings, there is a tendency for .the housing assembly I4, IE, I1 to bend transversely under the very great transverse forces transmitted thereto by the rotating weights, particularly at said high velocities, but said housings are maintained in predetermined relation with the axes of the shafts 34 and 36 maintained parallel and in exact radial displacement by the provision of the sole plate B8 and the rigid connection therewith of the housing portions.

It will be observed that the sole plate 6l is all in one piece and may be made of any thickness and rigidity necessary, and that although the housing portions I4, I and I6 are separately formed and joined together, vthe housing portions I4 and I5 are furthermore rigidly and independently secured to the rigid sole plate il; so that even at the heretofore unattainable velocities of 3,000 to 4,000 revolutions per minute, the unit will be maintained with all of the stationary parts thereof in rigid predetermined assembled relation and unyielding in spite of the vibratory strains thereon. It will also be apparent that the vibrations developed in the units will be transmitted rectilinearly to any object to be vibrated to which the I-beam vil may be attached because of the rigid connection of the sole plate thereto. l

It will be noted that the intermediate housing I6 is generally in the form of two tubular portions oset from eachotherradially corresponding to the radial offset relation of the shafts 34 and 36 and their weights 33-33. In the modificatin illustrated in Figs. 6 and '1, the housings I5 and i6 are merged into a single housing 19, which may be circular in section. In this form, the bolts 23 of the housing I4 are screwed into a peripheral flange 80 of the housing 19. While as shown the peripheral flange 80 projects inwardly and therefore may require that the housing 19 be formed with an internal core in the casting operation, this disadvantage may be offset by the still greater rigidity of the housing as a whole which is provided by eliminating one of the joints therein, namely that in the other form between the housings I5 and i8. Any power means such as an electric m'otor, gasoline motor or the like may be employed to drive the belt pulley 13.

My invention i`s not limited to the exact details illustrated and` described. Changes and modiilcations may be made therein and my invention comprehends all such changes and modiiications embraced within the scope of the appended claims.

I claim:

1. In a vibratory motion producing mechanism, a main frame comprising a pair of cup-form housings rigidly joined together at peripheral ,open end portions thereof, large diameter antifriction bearings having outer raceways axially slidably supported in corresponding bores in each housing adjacent the open ends thereof, small diameter anti-friction bearings disposed adjacent the closed ends of the cup-form housings having outer raceways rigidly secured therein against axial and `radial movement, and, axially spaced from the large diameter bearings, the inner raceways of both bearings ineach housing being rigidly secured to a shaft and the shafts being axially parallel and spaced apart laterally, intermeshed gears on the shafts between the large diameter bearings and a laterally offset weight on each shaft between the gear and the large diameter bearing thereof.Y

2. In a vibratory motion producing mechanism, a main frame comprising a pair of cup-form housings rigidly `joined together at peripheral open end portions thereof, large diameter antifriction bearings having outer raceways axially slidably supported in corresponding bores in each housing adjacent the open ends thereof, small diameter anti-friction bearings disposed adjacent the closed ends of the cup-form housings having outer raceways rigidly secured therein against axial and radial movement, and axially spaced from the large diameter bearings, the inner raceways of both bearings in each housing being rigidly secured to a shaft and the shafts being axially parallel and spaced apart laterally, intermeshed gears on the shafts between the large diameter bearings and a laterally oifset weight on each shaft between the gear and the large diameter bearing thereof, and a single sole plate rigidly secured to both housings, and one shaft extending outwardly from its housing adapted to be rotatably driven. Y

3. In a vibratory motion producing mechanism, a main frame comprising a pair of cup-form housings rigidly joined together at peripheral open end portions thereof, large diameter antifriction bearings having outer raceways axially slidably supported in corresponding bores in each housing adjacent the open ends thereof, small diameter anti-friction bearings disposed adjacent the closed ends of the cup-form housings having outer raceways rigidly secured therein against axial and radial movement, and axially spaced from the large diameter bearings, the inner raceways of the small diameter bearings each telescoped over a shaft, the shafts being disposed parallel and radially offset andeach shaft having a shoulder thereon, a tubular Weight head telescoped over each shaft at a point spaced from the small diameter bearing and engaging the shoulder, the head being telescoped within the inner raceway of the large diameter bearing and having a headshoulderthereon, a sleeve on each shaft between the inner raceways of the large diameter and small diameter bearings, the inner lraceway of the large diameter'bearing being disweight on each shaft between the gear and the large diameter bearing.

4. In a. vibratory motion producing mechanism, a main frame comprising a pair of cup-form housings rigidly joined together at peripheral open end portions-thereof, large diameter antifriction bearings having vouter raceways axially slidably supported in corresponding bores in each housing adjacent the open ends thereof, small diameter anti-friction bearings disposed adjacent the closed ends of the cup-form housings havingouter raceways rigidly secured therein against axial and radial movement, and axially spaced from the large diameter bearings, the inner raceways of the small diameter bearings each telescoped over a shaft, the shafts being disposed parallel and radially offset and each shaft having a shoulder thereon, a tubular weight head telescoped over each shaft at a point spaced from the small diameter bearing and engaging the shoulder, the head being telescoped within the inner raceway of the large diameter bearing and having a head-shoulder thereon, a sleeve on each shaft between the inner raceways of the large diameter and small diameter bearings, a flange on the sleeve, the inner raceway of the large di'- ameter bearing being disposed between the said headshoulder and the said flange, a nut threaded on each shaft on the other side of the inner raceway of the small diameter bearing` clamping the tubui ar head, sleeve and inner racewayof the small diameter bearing between the shoulder and the mit, and intermeshed gears on the shafts betwee'n the large diameter bearings and a laterally loifsetweight on each shaft between the gear and the large diameter bearing.

5. jIn a vibratory motion producing mechanism,`

supported in corresponding bores in eischhousingl adJaoent the open ends thereof. anti-friction rear Y disposed adiacent the bottom ,ends of 15- the cup form housings having outer racew'ays rigidlysecuredtherein againstaxialandradial movement-and spaced from the front bear-ilus, the inner of both bearings in been honing being rigidly secured to a smit 30 andtheahaftsbeingspacedapartlaterally.inter gears onthe shafts between the-front Vsind a laterally offset weight on each l t betweenthe gear and the front bearing thereof, and a single sole plate rigidly seeured'to 35 both housings and one shaft extending outwardly l from its housing adapted to be rotatably driven.y

7. In a vibrator! motion producing mechanism. amainframeoomprimngapairofcup-form housings rigidly Joined together at peripheral n open end portions thereof, anti-friction front bearings having outer man axially slideably supported in corresponding bores in each housing adiaoent the open ends thereof, anti-friction rear bearings disposed adiacent the bottom ends l of the cup-formihomings having outer racrwaysA rigidly secured therein .against axial andradial movement and axially spaced from the front bearings,theinnerraoewaysoftherearbearings eaenxwopedomamartmesngmbeing 4 ndiauy ossei and en shaft having a shoulder thereon, a tubular weight head telesooped over eachshaft atapointspaoedfrom therearbearlng and mail!!! the shoulder. the head being telelowedwithintbe inner raceway of the front a bearing and having a vhead-shoulder thereon, a sleeveoneachshaftbetween theinner raceways of the front and Mr bearings, the inner racef` way of the front bearing being disposed between the' head-shoulder and ,a portion of the sleeve, a l. nut threaded on each shaft on the 'other side oftheinnerraoeway of the rearbearings clamping the tubular head. sleeve and innerraceway oftherearbearingbetween theshoulderandthe nut and intsrmeshed gears on theshaft between u the front bearings, and a laterally oifset weight on eachshaftbetweenthegearand the front l..

8.- In a vibratory motion producing mechanism, a main frame comprising a pair of cup-form housings rigidly Joined together at peripheral open end portions thereof, anti-friction front bearings having outer raceways axially slideably supported in corresponding bores in each housing adjacent the open ends thereof, anti-friction rear bearings disposed adjacent the bottom ends of the lo cup-form housings having outer raoeways rigidly secured therein againstaxial and radial movement and axially spaced fron'i the front bearings. the inner .raoeways of the rear bearings being each telescoped over a shaft, the shafts being 15 radially oifset and each shaft having a shoulder thereon, a tubular weight head telesooped over each shaft at a point spaced from the' fear bearing and engaging the shoulder, the head beingl telescoped within the inner raceway of the front 20 bearing and having a head-shoulder thereon.` a sleeve on each shaft between the inner raceways of the front and rear bearings, a ange on the sleeve, the inner raceway of the front bearing being disposed between the said head-shoulder 2 and the said flange, a nut threaded on each shaft on the other side of the inner raceway of the rear bearings clamping the tubular head, sleeve and inner raceway of the rear bearing between the shoulder and the nut, and intermeshed gears on 3 the shafts betwem the front bearings, and a laterally offset weight on each shaft between the gear and the front bearing.

' il. In a vibratory motion producing mechanism,

a mainframe comprising a pair of cup-form 3J housings rigidly Joined together at peripheral open end portions thereof, and anti-friction front bearings having an outer raceway mounted in each housing adjacent the open end thereof. and gnu-friction rm bearings disposed adjacent un 0 bottom ends of the cup-form housings and having an outer raoeway supported by the housingv axially spaced from the front bearing, the outer raceway of one bearing in each housingbeing secured to the housing against axial and radial movement and the raceway of the other bearing being secured to the housing against radial movement but slideabie therein the inner racewaysofbothbearingsineachhousingbeingrigido lysecuredtoashaftand theshaftsbeingspaced apart laterally. intermeshed gears o n the shafts between the front bearings and a laterally od'set weightoneachshaft. l

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