Drive for a machine, torque motor, clutch unit, device for processing materials, and use of a torque motor

Patent metadata

Field	Value
Publication number	US-10807337-B2
Application number	US-201515508311-A
Country	US
Kind code	B2
Filing date	Sep 1, 2015
Priority date	Sep 8, 2014
Publication date	Oct 20, 2020
Grant date	Oct 20, 2020

Abstract

The invention relates to a drive (1; 101) of a machine (2) comprising a drive motor (3) for driving a rotatable shaft (5) of the machine (2) around a shaft axis of rotation (4), and comprising a clutch unit (10) in operative connection with the drive motor (3) and the shaft (5) for compensating for a relative movement (11) between the shaft (5) and the drive motor (3). The drive motor (3) has a rotor part (35) surrounding the shaft (5) on which a clutch rotation part (18A) of the clutch system (10) is mounted to be rotatable around the shaft axis of rotation (4), wherein the rotor part (35) is arranged at least partially engaging in the clutch rotation part (18A) in such a way that the clutch rotation part (18A) is mounted radially movably on the rotor part (35).

First claim

The invention claimed is:

1. A drive of a machine, the drive comprising:
a shaft rotatable about a shaft axis and having a pair of axially opposite ends;
a drive motor having a rotor surrounding the shaft between the ends and rotatable about a rotor rotation axis limitedly movable radially of the shaft, both of the ends being exposed past the drive motor; and
a coupling operatively connected to the drive motor and to the shaft between the motor and one of the ends for compensating for relative movement between the shaft and the drive motor, the coupling having a rotatable coupling part rotatable about the shaft rotation axis and movable radially relative to the shaft axis and rotor axis, the rotor at least partially engaging in the rotatable coupling part.

2. The drive according to claim 1 , wherein the rotatable coupling part and the rotor together form a connection that carries the rotatable coupling part so that it is radially movable but rotationally fixed directly on the rotor.

3. The drive according to claim 2 , wherein the rotor has at least one coupling dog engaging axially in a connecting slot formed in the rotatable coupling part.

4. The drive according to claim 3 , wherein the at least one coupling dog projects axially beyond a front axial end face of the rotor.

5. The drive according to claim 3 , wherein the at least one coupling dog is spaced radially from the shaft rotation axis.

6. The drive according to claim 1 , wherein the rotatable coupling part is operatively connected to a coupling hub mounted on the shaft so that it is radially movable.

7. The drive according to claim 6 , wherein the rotatable coupling part and the coupling hub are operatively connected to one another by coupling lugs engaging in connecting slots.

8. The drive according to claim 1 , wherein the rotatable coupling part is an Oldham disk of an Oldham coupling.

9. The drive according to claim 8 , further comprising:
a coupling hub with a coupling flange and displaceable radially with respect to the coupling flange and also radially displaceable with respect to the coupling flange, the coupling hub, the coupling flange and the coupling Oldham disk being operatively connected to one another in such a way that the coupling Oldham disk is displaceable radially with respect to the coupling flange, the coupling flange holding a rotor ring element of the rotor of a torque motor.

10. The drive according to claim 9 , wherein the coupling flange forms a bearing seat of a roller bearing or slide bearing of the torque motor that secures the coupling flange rotatably on a housing of the torque motor.

11. The drive according to claim 9 , wherein the coupling flange comprises at least one axial cam and/or at least one axial cam groove.

12. The drive according to claim 1 , wherein the rotor comprises a first connection part of a connection of the coupling operatively connecting a torque motor and the shaft.

13. The drive according to claim 12 , wherein the first connection part is a flange of the coupling.

14. The drive according to claim 12 , wherein the rotor is unitarily formed with the first connection part.

15. The drive according to claim 12 , wherein the first connection part comprises at least one axial cam or an axial cam groove.

16. The drive according to claim 12 , further comprising:
an additional connection part that is radially displaceable with respect to the first connection part.

17. The drive according to claim 16 , wherein the additional connection part comprises an Oldham disk of an Oldham coupling.

Assignees

• Sms Group Gmbh

Inventors

• Krieger Willhelm

Classifications

• H02K51/00

  Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts · CPC title

• B30B1/261

  by cams · CPC title

• H02K49/10

  of the permanent-magnet type · CPC title

• B30B1/266 Primary

  Drive systems for the cam, eccentric or crank axis · CPC title

• H02K16/04

  Machines with one rotor and two stators · CPC title