Vibration system

Patent metadata

Field	Value
Publication number	US-10072386-B1
Application number	US-201715592540-A
Country	US
Kind code	B1
Filing date	May 11, 2017
Priority date	May 11, 2017
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A vibration system for a compactor drum including a central support structure fixedly mounted within the compactor drum. The vibration system also includes a first vibratory exciter coupled to the central support structure. The vibration system further includes a second vibratory exciter coupled to the central support structure. The second vibratory exciter is longitudinally spaced apart from the first vibratory exciter. The vibration system includes a stabilizer element coupled to, and extending between, the first and second vibratory exciters. The stabilizer element is parallel to the central support structure.

First claim

What is claimed is:

1. A vibration system for a compactor drum, the vibration system comprising:
a central support structure fixedly mounted within the compactor drum;
a first vibratory exciter coupled to the central support structure;
a second vibratory exciter coupled to the central support structure, wherein the second vibratory exciter is longitudinally spaced apart from the first vibratory exciter; and
a stabilizer element coupled to, and extending between, the first and second vibratory exciters, wherein the stabilizer element is parallel to the central support structure.

2. The vibration system of claim 1 , wherein a first end of the stabilizer element is coupled to the first vibratory exciter and a second end of the stabilizer element is coupled to the second vibratory exciter.

3. The vibration system of claim 2 , wherein the stabilizer element is coupled to each of the first and second vibratory exciters using mechanical fasteners.

4. The vibration system of claim 2 , wherein a shape of the first and second ends of the stabilizer element is based on an outer profile of the first and second vibratory exciters.

5. The vibration system of claim 3 , wherein the first and second ends of the stabilizer element includes a modaly tuned shape.

6. The vibration system of claim 1 , wherein the stabilizer element is made of steel.

7. The vibration system of claim 6 , wherein the stabilizer element is made of a semi-rigid material, such as, aluminum.

8. A compactor drum for a compaction machine, the compactor drum comprising:
a drum shell;
a first support plate fixedly mounted within the drum shell, wherein the first support plate is adapted to couple a first side of the compactor drum with a frame of the compaction machine;
a second support plate fixedly mounted within the drum shell, the second support plate being spaced apart from the first support plate, wherein the second support plate is adapted to couple a second side of the compactor drum with the frame of the compaction machine; and
a vibration system for generating vibrations in the compactor drum, the vibration system comprising:
a central support structure fixedly mounted within the drum shell;
a first vibratory exciter coupled to the central support structure;
a second vibratory exciter coupled to the central support structure, wherein the second vibratory exciter is longitudinally spaced apart from the first vibratory exciter; and
a stabilizer element coupled to, and extending between, the first and second vibratory exciters, wherein the stabilizer element is parallel to the central support structure.

9. The compactor drum of claim 8 , wherein a first end of the stabilizer element is coupled to the first vibratory exciter and a second end of the stabilizer element is coupled to the second vibratory exciter.

10. The compactor drum of claim 9 , wherein the stabilizer element is coupled to each of the first and second vibratory exciters using mechanical fasteners.

11. The compactor drum of claim 9 , wherein a shape of the first and second ends of the stabilizer element is based on an outer profile of the first and second vibratory exciters.

12. The compactor drum of claim 11 , wherein the first and second ends of the stabilizer element includes a modaly tuned shape.

13. The compactor drum of claim 8 , wherein the stabilizer element is made of steel.

14. The compactor drum of claim 13 , wherein the stabilizer element is made of a semi-rigid material, such as, aluminum.

15. A compaction machine comprising:
a frame; and
at least one compactor drum coupled to the compaction machine; wherein the at least one compactor drum includes a drum shell and a vibration system, the vibration system comprising:
a central support structure fixedly mounted within the drum shell;
a first vibratory exciter coupled to the central support structure;
a second vibratory exciter coupled to the central support structure, wherein the second vibratory exciter is longitudinally spaced apart from the first vibratory exciter; and
a stabilizer element coupled to, and extending between, the first and second vibratory exciters, wherein the stabilizer element is parallel to the central support structure.

16. The compaction machine of claim 15 , wherein a first end of the stabilizer element is coupled to the first vibratory exciter and a second end of the stabilizer element is coupled to the second vibratory exciter.

17. The compaction machine of claim 16 , wherein the stabilizer element is coupled to each of the first and second vibratory exciters using mechanical fasteners.

18. The compaction machine of claim 16 , wherein a shape of the first and second ends of the stabilizer element is based on an outer profile of the first and second vibratory exciters.

19. The compaction machine of claim 18 , wherein the first and second ends of the stabilizer element includes a modaly tuned shape.

20. The compaction machine of claim 15 , wherein the stabilizer element is made of steel.

Assignees

• Caterpillar Paving Products Inc

Inventors

• Lehtola Joseph Alan
• Oetken Nicholas Alan

Classifications

• B06B1/186

  operating with rotary unbalanced masses · CPC title

• E01C19/282

  self-propelled, e.g. with an own traction-unit (E01C19/285 - E01C19/288 take precedence) · CPC title

• E01C19/286 Primary

  Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll (E01C19/287 and E01C19/288 take precedence) · CPC title

• B06B1/16

  operating with systems involving rotary unbalanced masses · CPC title