Exciter apparatus

Inventors: Michael Gardiner (Rochedale South, AU); Tejas Halani (Chermside, AU); Shanoon Alhassan (Auchenflower, AU); Clayton Seymour (Brisbane, AU); Byron Sadler (Pinkenba, AU); Gordon Ong (Wakerley, AU)

Assignee: FLSmidth A/S

B07B1/42 B06B1/16 B07B1/284 F16C19/26 F16C33/6659 F16C35/042 F16C2320/00

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Quick Facts

Patent No.: US 12661692
App. No.: 18/703,711
Granted: Jun 23, 2026
Kind: B2

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Abstract

An exciter apparatus for a vibrating machine having an exciter body being configured to accommodate a lubricant. The exciter apparatus further has a first bearing comprising an inner bearing portion and an outer bearing portion separated by a number of rollers located in a gap between the inner bearing portion and outer bearing portion. A first shaft is rotatably connected to the exciter body by means of the first bearing. The first shaft has eccentric masses. The first bearing seat and the outer bearing portion comprising a through hole allowing a fluid to flow through the first bearing seat and the outer bearing portion into the gap, The exciter apparatus further comprising a lubricant provision means configured to provide a lubricant from the lubrication zone to the through hole.

Claims (32)

1 . An exciter apparatus for a vibrating machine, such as a screen machine or a feeder, comprising:

an exciter body comprising a first bearing seat, said exciter body being configured for accommodating a lubricant and having a lubrication zone in a lower portion of the exciter body;

a first bearing comprising an inner bearing portion and an outer bearing portion separated by a number of rollers located in a gap between the inner bearing portion and outer bearing portion, the outer bearing portion being attached to the first bearing seat such that the inner bearing portion is configured to rotate relative to the exciter body;

a first shaft attached to the inner bearing portion, the first shaft comprising eccentric masses causing the exciter apparatus to vibrate upon rotation thereof;

wherein the first bearing seat and the outer bearing portion comprising a through hole allowing a fluid to flow through the first bearing seat and the outer bearing portion into the gap, and wherein the exciter apparatus further comprising a lubricant provision means configured to provide a lubricant from the lubrication zone to the through hole;

a lubricant reservoir having an open upper end adapted to receive the lubricant, the lubricant reservoir located adjacent and above the through hole and located in the exciter body such that the lubricant located in the lubricant reservoir is provided to the gap by means of gravity; and

a gutter formed from an extending edge on an outer surface of the first bearing seat, the gutter formed to divert the lubricant to the lubricant reservoir.

2 . The exciter apparatus according to claim 1 , wherein an inner surface of the first bearing seat and/or an outer surface of the outer bearing portion comprising a first groove.

3 . The exciter apparatus of any one of claims 1-2 , wherein:

the lubricant provision means is a rotatable lubricant provision means at least partially located in the lubrication zone and configured to distribute lubricant around inside the exciter body upon rotation, said rotatable lubricant provision means includes at least one of a flinger device, a gear wheel, or a fluid pump configured to pump a lubricant from the lubrication zone to the through hole, said fluid pump optionally being coupled to and driven by the first shaft.

4 . The exciter apparatus of any one of claims 1-3 , wherein the gutter includes a first gutter and further comprising a second gutter provided on an inner end surface of the exciter body.

5 . The exciter apparatus of any one of claims 1, 2, 3, 4 , wherein the lubricant reservoir is a first lubricant reservoir, and further comprising a second lubricant reservoir.

6 . The exciter apparatus of any one of claims 1, 2, 3, 4, 5 , further comprising a second bearing seat and a second bearing located in said second bearing seat, wherein an inner surface of the second bearing seat and/or an outer surface of the second outer bearing seat comprising a second groove, said second groove being fluidly connected to the first groove.

7 . The exciter apparatus according to claim 6 , wherein the lubricant reservoir is a first lubricant reservoir, and further comprising a second lubricant reservoir, and wherein the first lubricant reservoir and the second lubricant reservoir are located on opposite sides of the first bearing seat and the second bearing seat.

8 . The exciter apparatus according to claim 6 , wherein the through hole includes a plurality of through holes in at least one of the first bearing seat and the second bearing seat.

9 . The exciter apparatus of any one of claims 1, 2, 3, 4, 5, 6, 7, 8 , wherein the exciter apparatus comprises a deflector device located in an upper portion of the exciter body.

10 . The exciter apparatus according to claim 9 , further comprising a lid portion, and wherein the deflector device is provided on an internal surface of the lid portion.

11 . The exciter apparatus according to claim 9 or 10 , further comprising a second bearing seat, and wherein the deflector device is located above and between the first bearing seat and the second bearing seat.

12 . The exciter apparatus of any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , further comprising a second bearing seat, and wherein the exciter apparatus is inclined with respect to horizontal, such that the first bearing seat is located above the second bearing seat.

13 . A vibrating screen machine or a vibrating feeder comprising the exciter apparatus of amy one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 .

14 . The exciter apparatus according to claim 5 , wherein the second lubricant reservoir is located on an opposite side of the first bearing from the first lubricant reservoir.

15 . The exciter apparatus according to claim 9 , wherein the deflector device is located above the first bearing seat.

16 . The exciter apparatus according to claim 11 , wherein the deflector device is offset towards the first bearing seat.

17 . An exciter apparatus for a vibrating machine, such as a screen machine or a feeder, comprising:

an exciter body comprising a first bearing seat, said exciter body being configured for accommodating a lubricant and having a lubrication zone in a lower portion of the exciter body;

a first shaft attached to the inner bearing portion, the first shaft comprising eccentric masses causing the exciter apparatus to vibrate upon rotation thereof;

a deflector device located in an upper portion of the exciter body and extending into the exciter body.

18 . The exciter apparatus according to claim 17 , further comprising a lid portion to seal the exciter body, and wherein the deflector device is provided on an internal surface of the lid portion.

19 . The exciter apparatus according to claim 17 , further comprising a second bearing seat, and wherein the deflector device is located above and between the first bearing seat and the second bearing seat.

20 . The exciter apparatus according to claim 19 , wherein the deflector device is offset towards the first bearing seat.