Compacting roll

Patent metadata

Field	Value
Publication number	US-10501904-B2
Application number	US-201816142083-A
Country	US
Kind code	B2
Filing date	Sep 26, 2018
Priority date	Sep 27, 2017
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

A compacting roll for a soil compactor includes a roll shell concentrically surrounding a roll rotational axis, a roll inner space and two oscillatory arrangements, at least partially arranged within the roll inner space, for generating the oscillating torque impinging on the roll shell with respect to the roll rotational axis, whereat each oscillatory arrangement includes at least two oscillation mass units that are rotatable around the respective oscillation rotational axis and at least one oscillation drive motor to serve exclusively for driving the oscillation mass units of this oscillatory arrangement. The oscillation mass units of different oscillatory arrangements can be offset from each other in the direction of the roll rotation axis.

First claim

The invention claimed is:

1. A compacting roll for a soil compactor, comprising a roll shell concentrically surrounding a roll rotational axis, a roll inner space and two oscillatory arrangements, at least partially arranged within the roll inner space, for generating an oscillating torque impinging on the roll shell with respect to the roll rotational axis, whereat each oscillatory arrangement comprises at least two oscillation mass units that are rotatable around the respective oscillation rotational axis and at least one oscillation drive motor to serve exclusively for driving the oscillation mass units of this oscillatory arrangement, whereat the oscillation mass units of different oscillatory arrangements are offset from one another in direction of the roll rotational axis and do not overlap one another in the direction of the roller rotation axis, and wherein each oscillatory arrangement features at least two oscillation mass units that are arranged in pairs opposite one another with respect to the roller rotation axis.

2. The compacting roll according to claim 1 , wherein at least one oscillatory arrangement features at least two oscillation mass units of an oscillatory arrangement that are not offset from one another in the direction of the roll rotation axis.

3. The compacting roll according to claim 1 ,
wherein each oscillatory arrangement features at least two oscillation mass units that are arranged in pairs opposite one another with respect to the roller rotation axis, with an angular distance of 180°.

4. The compacting roll according to claim 1 ,
wherein the oscillation mass units of different oscillatory mass arrangements are arranged with respect to each other in such a way, that at least one each oscillation mass unit of an oscillatory mass arrangement is provided with an oscillation mass unit of the other oscillatory mass arrangement coaxially arranged to it.

5. The compacting roll according to claim 1 ,
wherein a rotational position sensor is provided in association with each oscillatory arrangement for providing information regarding the rotational position of the oscillation mass units of this oscillatory arrangement, and in that a control arrangement is provided for controlling the oscillation drive motors based on the information provided by the rotational position sensors.

6. The compacting roll according to claim 1 ,
wherein at least one oscillatory arrangement is provided with a belt drive for driving the oscillation mass units of said oscillatory arrangement for rotation around their oscillation rotational axes.

7. The compacting roll according to claim 1 ,
wherein one of the oscillatory arrangements is arranged in a length-halved area of the roll inner space and the other oscillatory arrangement is arranged in the other length-halved area of the roll inner space.

8. The compacting roll according to claim 1 ,
wherein the oscillating arrangements do not overlap one another in the direction of the roll rotational axis.

9. A soil compactor comprising at least one compacting roll according to claim 1 .

Assignees

• Hamm Ag

Inventors

• Meixner Franz

Classifications

• E01C19/286

  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

• E01C19/282

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

• E02D3/074 Primary

  Vibrating apparatus operating with systems involving rotary unbalanced masses (E02D3/054 takes precedence) · CPC title

• E01C19/29

  Rolling apparatus adapted to apply a rolling pressure less than its weight, e.g. roller finishers travelling on formrail {combined with spread-out, strike-off or smoothing means; Rolling elements with controlled penetration or a controlled path of movement in a vertical plane, e.g. controlled by the formrails, by guides ensuring a desired configuration of the rolled surface} · CPC title

• B06B1/16

  operating with systems involving rotary unbalanced masses · CPC title