US2778231A - Device with an unbalance element - Google Patents

Description

Jan- 22, 1957 M. LAMoRT DE GAM.

DEVICE WITH AN UNBALANCE ELEMENT Filed May 25, 1954 IHVNTDR: MMT ne Gig/1 MARC LA 3y! j DEVICE WTH AN UNBALANCE ELEMENT Marc Lamort De Gail, Vitry-le-Francois, France, assignor to E & M Lamort Fils, Vitry-le-Francois, France, a company of France Application May 25, 1954, Serial-Not,v 432,24@ Claims priority, application France June 1, 1953 13 Claims. (Cl. 74-37) The present invention relates to a device with an unbalanced element for vibrating apparatus, and particularly for ilat or rotary sorting or purifying apparatus, such as are used in the paste or paper industries.

It is an object of the present invention to avoid the disadvantages inherent in vibrating apparatus according to the prior art.

it is another object of the invention to provide a device which is simple and which can be easily adjusted to various degrees of imbalance.

Yet another object of the invention is to provide a device which can be manufactured inexpensively and which requires a minimum of maintenance.

With the above objects in View the present invention mainly consists in a vibrating apparatus comprising a support, first eccentric ywheel means mounted on the support for rotation relative thereto about an axis, second eccentric ywheel means mounted on the support for rotation relative thereto about the same axis independently of said trst flywheel means, and means for non-rotatably connecting the iirst and second iiywheel means to each other. When the rst and second flywheel means are non-rotatably connected to each other they rotate about said axis together while forming compound ily'vvheel means having a predetermined degree of eccentricity. When the iirst and second ywheel means are disconnected from each other, one of the ywheel means can be angularly displaced about said axis independently of the other. The tirst and second iiywheel means so displaced, can thereupon be reconnected and can rotate together while forming compound iiywheel means having a different degree of eccentricity.

The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description or specific embodiments when read in connection with the accompanying drawings, in which:

Fig. l is a sectional View of a device according to the present invention;

Fig. 2 is a side view showing a part of the device of Fig. l;

Fig. 3 is a side View showing another part of the device of Fig. l;

Fig. 4 is a side view partly in section showing the device oi Fig. 1 in another position;

Fig, 5 is a side view of a part of the device as shown in Fig. 4; and

Fig` 6 is a side view of another part as shown in Fig. 4.

In the embodiment illustrated in the drawings, diskshaped unbalanced elements or ywheel members 6 and are mounted on a tube or support 8 at opposite ends thereof and together therewith form first compound flywheel means. Disk-shaped unbalanced elements or ily- SIX wheelmembe'rs 1' and 2- are mounted on a shaftorsupport 3 at opposite ends thereof and together therewithv form second compound flywheel means;

The members 6 and 7 are`rotatable with support 8 relative the members' 1 and 2 and the shaft 3. A casing' itl having bearings 9" provides a support in which theV flywheel means are mounted;

Slugs i1 and 12, providedin the respective flywheel:

members, may be opposed, as shown' in Figs. 4-6, or

they may be spacedfrom each other axially, as shown in Figs. l-3, to provide different degrees ofy eccentricity for the compound'ywlie'el means.

The iiywheelfmembers 1` and Z each have, inthe region of the respective inner end face' thereof, a' convex substantially frusto-conical engaging surface, While the flywheel members 6 and l have, in the-region of the respective outer end faces thereof, a concave substantially truste-conical engaging surface which has a shape corresponding substantially to that of the engaging surface ot' the adjacent ilywheel members 6 and 7. These engaging surfaces provide friction clutch means by which` A push ring13 and lock nuts 14 and 15 are locatedv on support 8 and provide' clutch means by which the members o and 7 are pushed against the members 1 and- 2 so that the respective concave and convex engaging surfaces are in contact and maintain the lirstand second flywheel means coupled to each other for rotation.

The members 6 and '7' are each formed with a hole 1] into which a spindle 16 is movable. i6 and 17 act as stop means and prevent axial turning of members 6 and 7 while the members 1 and Zfare being turned axially to change-the position of slugs 11 and l2 relative to each other.

in operation of the device, the ywheel members are movable between an engaged position in whichfthe engaging surfaces are in engagement, providingy a compound tlywheel of a first degree of eccentricity, and a disengaged position in which the engaging faces of members 1 and Z are spaced from the engaging. faces of members 6 and 7 and in which the members 1 and Z and the members 6 and 7 are movable relative eachother.

To vary the degree of eccentricity in the illustratedv embodiment, the nuts 14 and 15 are unscrewed to release the ring 13 and the support 8 is turned with respect to the support 3 to orient the members 6 and 7 with respect to the members 1. and 2. Once the respective positions of the members have been set, the nuts 14 and 15 are tightened to cause the respective engaging faces of the members to be infrictional engagement.

It is clear from the foregoing, that the' elements shown in the left hand of Fig.l 1 can form compound ywheel means independently of the elements shown in the right hand of Fig. land that the' present invention is not limited to the form show in which there are ywheel members on both sides of the supports 3 and 4.

What I claim is:

l. In a vibrating apparatus, in combination, a support; rst eccentric flywheel means mounted on said support for rotation relative thereto about an axis; second eccentric flywheel means mounted on said support for rotation relative thereto about said axis independently of said iirst flywheel means; and clutch means for nonrotatably connecting said lirst and second ilywheel means to each other, whereby when said-first and second iiywheel means are non-rotatably connected to each other The elementsy 3 the same may rotate about said axis together while forming compound flywheel means having a predetermined degree of eccentricity and when said first and second flywheel means are disconnected from each other one of said flywheel means may be angularly displaced about said axis independently of the other of said flywheel means and may thereafter be non-rotatably connected -to said one flywheel means so that said first and second flywheel means may thereupon rotate about said axis together while forming compound flywheel means having a different degree of eccentricity.

` 2. The combination defined in claim l wherein said clutch means are friction clutch means.

3. In a vibrating apparatus, in combination, a support; first eccentric flywheel means mounted on said support for rotation relative thereto about an axis; second eccentric flywheel means having a mass equal to the mass of said first flywheel means and mounted on said support for rotation relative thereto about said axis independently of said first flywheel means; and clutch means for nonrotatably connecting said first and second flywheel means to each other, whereby when said first and second ilywheel means are non-rotatably connected to each other the same may rotate about said axis together while forming compound iiywheel means having a predetermined degree of eccentricity and when said first and second flywheel means are disconnected from each other one of said flywheel means may be angularly displaced about said axis independently of the other of said flywheel means and may thereafter be non-rotatably connected to said one flywheel means so that said first and second flywheel means may thereupon rotate about said axis together while forming compound flywheel means having a different degree of eccentricity.

4. In a vibrating apparatus, in combination, a support; first eccentric flywheel means mounted on said support for rotation relative thereto about an axis, said first flywheel means having a center of gravity spaced a predetermined distance from said axis; second eccentric flywheel means having a mass equal to the mass of said first flywheel means and mounted on said support for rotation relative thereto about said axis independently of said first flywheel means, said second flywheel means having a center of gravity also spaced said predetermined distance from saidv axis; and clutch means for non-rotatably connecting said first and second flywheel means to each other, whereby when said first and second flywheel means are non-rotatably connected to each other in such a manner that said centers of gravity thereof are angularly displaced by 180" said first and second flywheel means may rotate about said` axis together while forming balanced compound flywheel means and when said first and second flywheel means are disconnected from each other one of said flywheel means may be angularly displaced about said axis independently of the other of said flywheel means and may thereafter be non-rotatably connected to said one flywheel means so that said first and second flywheel means may thereupon rotate about said axis together while forming compound flywheel means having a predetermined degree of eccentricity.

5. In a vibrating apparatus, in combination, a support; first eccentric flywheel means mounted on said support for rotation relative thereto about an axis; second eccentric flywheel means mounted o-n said support for rotation relative thereto about said axis independently of said first flywheel means and for axial movement relative thereto between an operative position wherein said first and second flywheel means are adjacent to each other and an inoperative position wherein said first and second flywheel means are spaced from each other; clutch means on said first and second flywheel means for non-rotatably connecting the same to each other only when said second flywheel means is in said operative position thereof; and moving means for moving said second flywheel means between said operative and inoperative positions thereof,

whereby when said second ywheel means is in said operative position thereof said first and second flywheel means may rotate about said axis together while forming compound flywheel means having a predetermined degree of eccentricity and when said second flywheel means is moved from said operative position thereof to said in operative position thereof the same may be angularly dis= placed about said axis independently of said first flywheel means and may thereafter be moved into said operative position thereof so that said first and second flywheel n eans may thereupon rotate about said axis together while forming compound flywheel means having a difd ferent degree of eccentricity.

6. The combination dened in claim 5 wherein said clutch means are friction clutch means.

7, in a vibrating apparatus, in combination, a support; first eccentric flywheel means mounted on said support for' rotation relative thereto about an axis; second eccentric flywheel means mounted on said support for rotation relative thereto about said axis independently of said first flywheel means; clutch means for non-rotatably connecting said first and second flywheel means to each other, whereby when said first and second flywheel means are non-rotatably connected to each other the same may rotate about said axis together while forming compound flywheel means having a predetermined degree of eccentricity and when said first and second flywheel means are disconnected from each other one of said flywheel means may be angularly displaced about said axis independently of the other of said flywheel means and may thereafter be non-rotatably connected to said one flywheel means so that said first and second flywheel means may thereupon rotate about said axis together while forming compound llywheel means having a diderent degree of eccentricity; and stop means for preventing rotation of said other flywheel means during angular displacement of said one flywheel means relative to said other flywheel means.

8. In a vibrating apparatus, in combination, a support; a first shaft mounted on said support for rotation relative thereto about an axis; a second shaft mounted on said support for rotation relative thereto about said axis independently of said first shaft; first flywheel means mounted on said first shaft for rotation therewith about said axis', second flywheel means mounted on said second shaft for rotation therewith about said axis; and clutch means for non-rotatably connecting said first and second flywheel means to each other, whereby when said first and second flywheel means are non-rotatably connected to each other the same may rotate about said axis together while form ing compound flywheel means having a predetermined degree of eccentricity and when said first andsecond flywheel means are disconnected from each other one of said flywheel means may be angularly ldisplaced about said axis independently of the other of said flywheel means and may thereafter be non-rotatably connected to said one flywheel means so that said first and second flywheel means may thereupon rotate about said axis together while forming compound flywheel means having a different degree of eccentricity.

9, In a vibrating apparatus, in combination, a support; a first shaft mounted on said support for rotation relative thereto about an axis; a second shaft mounted on said support for rotation relative thereto about said axis independently of said first shaft, said second shaft being longer than said first shaft and having opposite free ends extending beyond the opposite free ends of said first shaft; a pair of first eccentric flywheel members mounted on said first shaft for rotation therewith at said free ends thereof, respectively; a pair of second eccentric flywheel members mounted on said second shaft for rotation therewith at said free ends thereof, respectively; clutch means for nourotatably connecting each of said first flywheel members to the corresponding second flywheel member, whereby when said pairs of first and second flywheel members are non-rotatably connected to each other the saine may rotate together with said rst and second shafts about said axis while forming compound flywheel means having a predetermined degree of eccentricity and when said pairs of rst and second flywheel members are disconnected from each other one of said shafts and consequently the flywheel members carried thereby may be angularly displaced about said axis independently of the other of said shafts and consequently the flywheel members carried thereby and said pairs of first and second ywheel means may thereafter be non-rotatably connected to each other so that the same may thereupon rotate together with said rst and second shafts about said axis while forming compound flywheel means having a different degree of eccentricity.

10. In a vibrating apparatus, in combination, a support; a first shaft mounted on said support for rotation relative thereto about an axis; a second shaft mounted on said support for rotation relative thereto about said axis independently of said rst shaft, said second shaft being longer than said first shaft and having opposite free ends extending beyond the opposite free ends of said first shaft; a pair of rst eccentric ywheel members mounted on said first shaft for rotation therewith at said free ends thereof, respectively; a pair of second eccentric flywheel members mounted on said second shaft for rotation therewith at said free ends thereof, respectively; clutch means for non-rotatably connecting each of said first flywheel members to the corresponding second flywheel member; and moving means for rotating said rst and second shafts relative to each other when said pairs of first and second flywheel members are disconnected from each other, whereby when said pairs of rst and second flywheel members are non-rotatably connected to each other the same may rotate together with said first and second shafts about said axis while forming compound ilywheel means having a predetermined degree of eccentricity and when sai-d pairs of first and second ywheel members are disconnected from each other one of said shafts and consequently the ilywheel members carried thereby may be angularly disp-laced about said axis independently of the other of said shafts and consequently the flywheel members carried thereby and said pairs of first 'and second flywheel means may thereafter be non-rotatably connected to each other so that the same may thereupon rotate together with said rst and second shafts about said axis while forming compound ywheel means having a different degree of eccentricity.

11. In a vibrating apparatus, in combination, a support; a first substantially disk-shaped eccentric flywheel mem ber having in the region of one end face thereof a convex substantially frusto-conical engaging surface and mounted on said support for rotation relative thereto about an axis; a second substantially disk-shaped eccentric flywheel member having in the region of one end face thereof a concave substantially frusto-conical engaging surface having a shape substantially corresponding to the shape of said engaging surface of said rst ilywheel member and mounted on said support for rotation relative thereto independently of said iirst ilywheel member, one of said ilywheel members being mounted on said support for axial movement relative to the other of said flywheel members between an engaged position wherein said end faces of said flywheel members are near each other and said engaging surfaces thereof are in engagement with each other in such a manner that said ilywheel members are non-rotatably connected to each other and .a disengaged position wherein said end faces of said flywheel members are spaced from each other and said engaging surfaces are out of engagement with each other; and moving means for moving said one flywheel member axially relative to the other of said ywheel members, whereby when said one ywheel member is in said engaged position thereof both of said flywheel members may rotate about said axis together while forming a compound flywheel having a predetermined degree of eccentricity and when said one flywheel member is moved from said engaged position thereof to said disengaged position thereof said ywheel members may be angularly displaced about said axis relative to each other and said one flywheel member may thereafter be moved from said disengaged position thereof to said engaged position thereof so that both of said flywheel members may thereupon rotate about said axis together while forming a compound llywheel having a different degree of eccentricity.

12. The combination defined in claim 11 wherein said one flywheel member is said second ywheel member.

13. The combination defined in claim 11 wherein said engaging surfaces of said ywheel members are in fric-v tional engagement with each other when said one flywheel member is in said engaged position thereof.

References Cited in the le of this patent

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