초록 ▼

A drive unit for a vehicle is provided for use as a robot in pipe systems, cavities or the like. The drive unit includes at least one ring-like outer wheel and at least one driven magnetic wheel. The outer and the magnetic wheels have axes parallel to each other and are arranged eccentrically to one

A drive unit for a vehicle is provided for use as a robot in pipe systems, cavities or the like. The drive unit includes at least one ring-like outer wheel and at least one driven magnetic wheel. The outer and the magnetic wheels have axes parallel to each other and are arranged eccentrically to one another, and engage one another such that when rotating relative to the outer wheel, the magnetic wheel delineates with its wheel axis a concentric circle lying within the outer wheel. In such a drive unit, stronger magnetic adhesion is enabled by the outer and magnetic wheels being arranged one behind the other in an axial direction. The engagement between the outer and magnetic wheels is effected by a circular, concentric disk connected securely against rotation to the magnetic wheel and rolls with its outer peripheral surface on the inner peripheral surface of the outer wheel.

대표청구항 ▼

1. A drive unit for a vehicle used as a robot in pipe systems or cavities, the drive unit comprises at least one ring-like outer wheel and at least one driven magnetic wheel, the at least one outer wheel and the at least one magnetic wheel have axes parallel to each other and are arranged eccentrica

1. A drive unit for a vehicle used as a robot in pipe systems or cavities, the drive unit comprises at least one ring-like outer wheel and at least one driven magnetic wheel, the at least one outer wheel and the at least one magnetic wheel have axes parallel to each other and are arranged eccentrically in relation to one another, and engaging with one another, in such a way that, when rotating relative to the at least one outer wheel the at least one magnetic wheel delineate with its wheel axis a concentric circle lying within the outer wheel, the outer wheel and the magnetic wheel are arranged one behind an other in an axial direction, and the engagement between the outer wheel and the magnetic wheel is effected by a circular, concentric disk that is connected securely against rotation to the magnetic wheel and rolls with its outer peripheral surface on the inner peripheral surface of the outer wheel. 2. The drive unit as claimed in claim 1, wherein the engagement between the disk and the outer wheel is effected by positive locking. 3. The drive unit as claimed in claim 2, wherein the positive locking is effected by toothing. 4. The drive unit as claimed in claim 1, wherein the engagement between the disk and the outer wheel is effected by friction locking. 5. The drive unit as claimed in claim 1, wherein the outside diameter (d1) of the outer wheel is greater than the outside diameter (D1) of the magnetic wheel. 6. The drive unit as claimed in claim 5, wherein the difference between the outside diameter (d1) and the inside diameter (d2) of the outer wheel is less than or equal to the difference between the outside diameter (D1) of the magnetic wheel and the outside diameter (D2) of the disk. 7. The drive unit as claimed in claim 6, wherein (d1−d2)/√2>(D1−D2)/√2. 8. The drive unit as claimed in claim 1, wherein two parallel, equally sized driven magnetic wheels are provided that are spaced apart from one another in an axial direction and are connected in a rotationally secured fashion to the disk, and arranged between the two magnetic wheels is a magnet that together with the two magnetic wheels forms a part of a magnetic circuit. 9. The drive unit as claimed in claim 8, wherein the disk is arranged outside the two magnetic wheels. 10. The drive unit as claimed in claim 9, wherein an axial guide is provided for the outer wheel surrounding the disk. 11. The drive unit as claimed in claim 8, wherein the magnet acts simultaneously as the disk, and the outer wheel is supported between the two magnetic wheels. 12. A vehicle for use as a robot in pipe systems or cavities, the vehicle comprises a vehicle body on which at least one drive unit is arranged for locomotion, the drive unit, comprises at least one ring-like outer wheel and at least one driven magnetic wheel, the at least one outer wheel and the at least one magnetic wheel have axes parallel to each other and are arranged eccentrically in relation to one another, and engaging with one another, in such a way that, when rotating relative to the at least one outer wheel the at least one magnetic wheel delineates with its wheel axis a concentric circle lying within the outer wheel, the outer wheel and the magnetic wheel are arranged one behind an other in an axial direction, and the engagement between the outer wheel and the magnetic wheel is effected by a circular, concentric disk that is connected securely against rotation to the magnetic wheel and rolls with its outer peripheral surface on the inner peripheral surface of the outer wheel. 13. The vehicle as claimed in claim 12, wherein a plurality of drive units are arranged in pairs on opposite sides of the vehicle body. 14. The vehicle as claimed in claim 13, wherein in each case a pair of drive units are provided on the vehicle body, relative to a travel direction, at a front portion and a rear portion. 15. The vehicle as claimed in claim 13, wherein all the drive units are driven independently of one another. 16. The vehicle as claimed in claim 14, wherein the vehicle body is subdivided in a travel direction into two subunits interconnected in an articulated fashion, and each subunit is assigned a pair of drive units. 17. The vehicle as claimed in claim 16, further comprising pivoting arms that project forward and rearward in the travel direction, are pivotable by a drive and is configured to support the vehicle on a wall as it drives around a corner. 18. The vehicle as claimed in claim 12, wherein rear wheels and/or auxiliary wheels are provided on the vehicle body in addition to drive units arranged at a front portion in a travel direction.