US3757148A - Vibratory motor of adjustable eccentricity - Google Patents

Vibratory motor of adjustable eccentricity Download PDF

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Publication number
US3757148A
US3757148A US00215547A US3757148DA US3757148A US 3757148 A US3757148 A US 3757148A US 00215547 A US00215547 A US 00215547A US 3757148D A US3757148D A US 3757148DA US 3757148 A US3757148 A US 3757148A
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US
United States
Prior art keywords
shaft
pair
motor
ribbed
load
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Expired - Lifetime
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US00215547A
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English (en)
Inventor
D Philibert
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SOC D EXPLOITATION des Ets D PHILIBERT FR
DES ETS D PHILIBERT SOC D EXPL
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DES ETS D PHILIBERT SOC D EXPL
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Application filed by DES ETS D PHILIBERT SOC D EXPL filed Critical DES ETS D PHILIBERT SOC D EXPL
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Publication of US3757148A publication Critical patent/US3757148A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • B06B1/162—Making use of masses with adjustable amount of eccentricity
    • B06B1/163—Making use of masses with adjustable amount of eccentricity the amount of eccentricity being only adjustable when the system is stationary

Definitions

  • Such a vibratory motor may be provided, on projecting opposite ends of its shaft, with eccentric masses whose loading effect determines the amplitude of the resulting vibrations at a frequency depending upon the motor speed. This amplitude can be adjusted by dividing either or each mass into a pair of loads whose angular separation can be varied to modify their effective eccentricity.
  • the general object of my invention is to provide means for facilitating such angular adjustment, advantageously with variations of the relative angular positions of all four arms to allow a symmetrical change in the effective eccentricity of the two pairs of loads.
  • a more specific object is to provide means for enabling such adjustment even where one of the two shaft ends, generally the lower one in the case of a vertical motor, is more or less inaccessible.
  • That other load especially if mounted on an inaccessible (e.g., lower) extremity, may be fixedly clamped to the shaft, e.g., to a part of its ribbed portion separated from another part thereof by an axial gap whose width is sufficient to accommodate the hub of the axially shiftable load to facilitate its angular adjustment.
  • the axial shifting of the last-mentioned load is accomplished with the aid of a link, such as a rod, passing in axial direction through the motor body to enable its manipulation from the opposite, readily accessible end.
  • the link may traverse the hollow motor shaft and terminate in a handgrip such as a wheel or a knob overlying its opposite (e.g., upper) end.
  • the loads mounted on the latter end could be independently adjusted by a splined connection similar to that described for the first pair of loads, i.e., by a ribbed shaft portion split into two parts for the respective entrainment of the two fluted hubs. Again, one of these hubs can be shifted into a ribless gap between the two ribbed parts while the other is shifted into a similar ribless zone adjoining one of these parts to facilitate their independent swinging about the shaft axis.
  • the loads referred to may simply be in the form of straight outrigger arms or bars having a fluted bore at one end to define the hub.
  • this hub may be split at one point to form a pair of clamp jaws which can be tightened about the ribbed shaft portion by a wing nut on a screw bridging these aws.
  • FIGURE is an axial sectional view of a vibratory motor representing a preferred embodiment.
  • the vibratory motor shown in the drawing comprises a cylindrical body 2 supported by a beveled flange 3 on a cover 6 of a housing not further illustrated.
  • the motor shaft 5 carries an armature 30 co-operating with a field winding 32 solid with the body 2.
  • Shaft 5 is journaled in two roller bearings 7, 7 designed to absorb the radial forces, and is axially supported by a thrust bearing 8 with deep-drawn ball races to take up the weight of the shaft and of the eccentric masses mounted thereon.
  • These masses include an upper pair of outrigger arms 9, 9a and a lower part of similar arms 10, 10a extending laterally from its projecting upper and lower extremities to which they are non-rotatably but adjustably joined by a splined connection.
  • the splines at the bottom end of shaft 5 comprise two sets of ribs 34, 35 axially separated by a ribless gap 33 at which the shaft diameter is at most equal to the root diameter of its splined portions; the axial width or height of this gap is at least equal to that of the fluted bore in the hub of the lower arm 10a mating with the ribs 35.
  • the splined parts 34 and 35 drivingly entrain the arms 10 and 10a, respectivelyQ
  • the hub of the upper arm 10 of this bottom assembly is split by a radial slit 36 enabling that hub to be clamped onto the part 34 of the shaft by means of a transverse screw 37.
  • This splined hub of arm 10 also has a height at most equal to that of the gap 33.
  • the lower arm 10a is secured to a disk 38 rigid with the bottom end of a vertical rod 39 which passes coaxially through the hollow shaft 5.
  • the top end of the rod 39 is fixed to an operating handwheel 40 which enables the rod to be manually rotated as well as moved vertically as indicated by arrows 42a and 42b.
  • This handwheel has a pointer 43 which, in
  • the angular position of the arm 10 relative to the shaft 5 can be selected upon initial assembly whereas the angular position of the arm 10a can be changed at any time according to the desired amplitude of vibration to be imparted to the support 6 on which the motor is'mounted.
  • To change the position of arm 10a all that is necessary is to lift the rod 39 (arrow 42a), thereby disengaging the splined hub thereof from the ribbed shaft portion 35 by aligning that'hub with the gap 33, whereupon the arm 10a can be turned by the handwheel 40 into the desired new angular position.
  • the rod 39 with arm 10a returns under its own weight (arrow 42b) to the level of its original position to reengage its splined hub with the shaft portion 35.
  • the splines on the top end of the shaft 5 also comprise two sets of ribs 46, 47 separated by a ribless gap 45 having a height at least equal to that of the fluted bore in the hub of the lower arm 9a of the upper eccentric assembly.
  • the splined parts 46 and 47 drivingly entrain the arms 9a and 9, respectively.
  • the upper splined part 47 is upwardly extended into a cylindrical part 48, supporting the scale bearer 44, whose diameter is the same as that of the gap 45 and whose height is at least equal to that of splined hub of the arm 9.
  • this vibratory motor is much more reliable and less troublesome than conventional ones.
  • a vibratory motor comprising:
  • a motor body provided with a throughgoing shaft having projecting extremities
  • At least one load of at least said first pair being provided with a fluted hub matingly engaging a ribbed shaft portion with freedom of axial disengagement therefrom to enable readjustment of the angular spacing of the loads of said first pair;
  • link means engaging said one load while passing in axial direction through said body for manipulation at a location remote from said first pair, said one load being axially movable by said link means for disengagement of its hub from said shaft and being thereupon rotatable by said link means into a different angular position relative to said shaft.
  • a motor as defined in claim 2 wherein said shaft is substantially vertical, said first pair being mounted on a bottom extremity of said shaft, said link means terminating in a handgrip overlying the top extremity of said shaft.
  • each of said extremities includes a ribbed shaft portion axially adjoining a ribless zone wide enough to accommodate a fluted hub on one load of the respective pair normally engaging said ribbed shaft portion, thereby enabling said one load of each pair to be angularly adjusted with reference to the other load of the pair.
  • a motor as defined in claim 6 wherein the other load of said first pair if fixedly positioned on said shaft, the ribbed shaft portion of said other of said extremities being divided intotwo axially separated ribbed parts normally engaged by respective fluted hubs of said second pair, the loads of said second pair being jointly axially shiftable into respective alignment with a ribless part between said ribbed parts and a ribless part beyond one of said ribbed parts for independent rotary adjustment with reference to said shaft.
  • each of said loads comprises a substantially straight outrigger arm provided near one end with a bore receiving said shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Automatic Assembly (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Accessories For Mixers (AREA)
US00215547A 1971-01-06 1972-01-05 Vibratory motor of adjustable eccentricity Expired - Lifetime US3757148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7100848A FR2140705A5 (show.php) 1971-01-06 1971-01-06

Publications (1)

Publication Number Publication Date
US3757148A true US3757148A (en) 1973-09-04

Family

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Application Number Title Priority Date Filing Date
US00215547A Expired - Lifetime US3757148A (en) 1971-01-06 1972-01-05 Vibratory motor of adjustable eccentricity

Country Status (9)

Country Link
US (1) US3757148A (show.php)
BE (1) BE777600A (show.php)
CH (1) CH544587A (show.php)
ES (1) ES398612A1 (show.php)
FR (1) FR2140705A5 (show.php)
GB (1) GB1315793A (show.php)
IT (1) IT951078B (show.php)
NL (1) NL7200106A (show.php)
SE (1) SE381581B (show.php)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911416A (en) * 1974-08-05 1975-10-07 Motorola Inc Silent call pager
US3919575A (en) * 1973-10-03 1975-11-11 Bosch Gmbh Robert Vibrator generator
US4034246A (en) * 1974-12-26 1977-07-05 Akinobu Nakashima Variable vibrating motor
US6580189B2 (en) * 2001-07-24 2003-06-17 Derrick Manufacturing Corporation Vibratory motor having a self-contained continuous bearing lubrication system
US6707193B2 (en) * 2000-09-11 2004-03-16 Mabuchi Motor Co., Ltd. Miniature motor with vibrator secured to an irregular portion of the motor shaft
WO2013162815A1 (en) 2012-04-27 2013-10-31 Martin Engineering Company Vibratory device with repositionable weights and method of extending the useful life of vibratory devices
US9882449B2 (en) 2015-04-17 2018-01-30 Martin Engineering Company Electrically driven industrial vibrator with circumjacent eccentric weight and motor
WO2020243682A1 (en) * 2019-05-30 2020-12-03 Baker Hughes Oilfield Operations Llc Solid level measurement with vibrating rod sensors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128713B (en) * 1982-10-22 1985-12-04 E & F Services Ltd Vibrator unit and apparatus for reclaiming particulate material including such a unit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919575A (en) * 1973-10-03 1975-11-11 Bosch Gmbh Robert Vibrator generator
US3911416A (en) * 1974-08-05 1975-10-07 Motorola Inc Silent call pager
US4034246A (en) * 1974-12-26 1977-07-05 Akinobu Nakashima Variable vibrating motor
US6707193B2 (en) * 2000-09-11 2004-03-16 Mabuchi Motor Co., Ltd. Miniature motor with vibrator secured to an irregular portion of the motor shaft
US6580189B2 (en) * 2001-07-24 2003-06-17 Derrick Manufacturing Corporation Vibratory motor having a self-contained continuous bearing lubrication system
WO2013162815A1 (en) 2012-04-27 2013-10-31 Martin Engineering Company Vibratory device with repositionable weights and method of extending the useful life of vibratory devices
US9101959B2 (en) 2012-04-27 2015-08-11 Martin Engineering Company Vibratory device with repositionable weights and method of extending the useful life of vibratory devices
EP2841214A4 (en) * 2012-04-27 2015-11-04 Martin Eng Co VIBRATION DEVICE WITH POSITIONABLE WEIGHTS AND METHOD FOR EXTENDING THE LIFE OF VIBRATION EQUIPMENT
EP3446796A1 (en) * 2012-04-27 2019-02-27 Martin Engineering Company Vibratory device with repositionable weights
US9882449B2 (en) 2015-04-17 2018-01-30 Martin Engineering Company Electrically driven industrial vibrator with circumjacent eccentric weight and motor
US10090731B2 (en) 2015-04-17 2018-10-02 Martin Engineering Company Electrically driven industrial vibrator with circumjacent eccentric weight and motor
WO2020243682A1 (en) * 2019-05-30 2020-12-03 Baker Hughes Oilfield Operations Llc Solid level measurement with vibrating rod sensors

Also Published As

Publication number Publication date
CH544587A (fr) 1973-11-30
GB1315793A (en) 1973-05-02
SE381581B (sv) 1975-12-15
IT951078B (it) 1973-06-30
NL7200106A (show.php) 1972-07-10
ES398612A1 (es) 1974-09-16
FR2140705A5 (show.php) 1973-01-19
BE777600A (fr) 1972-04-17

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