Surveying device having ball-point bearing

• US 10,126,124 B2
• Filed: 10/10/2015
• Issued: 11/13/2018
• Est. Priority Date: 10/10/2014
• Status: Active Grant

• Current Assignee: Leica Geosystems AG (Hexagon AB)
• Original Assignee: Leica Geosystems AG (Hexagon AB)
• Inventors: Muller, Josef, Petkov, Stefan, Scholl, Benjamin
• Primary Examiner(s): Ratcliffe, Luke D
• Application Number:
  US14/880,204
• Publication Number:
  US 20160102976A1
• Time in Patent Office: 1,130 Days
• CPC Class Codes: F16C 19/507 with rolling elements journaled in one of the moving parts, e.g. stationary rollers to support a rotating part
• CPC Class Codes: F16C 2370/00 Apparatus relating to physics, e.g. instruments in general G01 - G12
• CPC Class Codes: F16C 2370/20 Optical, e.g. movable lenses or mirrors; Spectacles in general G02
• CPC Class Codes: G01C 15/002 Active optical surveying means optical plumbing G01C15/105
• CPC Class Codes: G01C 3/02 Details

Abstract

In a surveying device having a base for positioning the surveying device and a pitch component having an optical beam path for surveying a target, the pitch component is radially and axially mounted and is rotatable in relation to the yaw component in a yaw component, which is movable in relation to the base, on the basis of a rotation body chucked in a self-centering manner in two cavities.

Claims

1. A surveying device comprising:

an optical measuring beam path;

a base for positioning the surveying device;

a yaw component, which is mounted so it is rotatable on the base about a standing axis, for the azimuthal alignment of the optical beam path; and

a pitch component, which is mounted so it is rotatable in the yaw component about a tilt axis, for the elevation alignment of the optical beam path, wherein;

a rotation body, in particular a ball, is chucked in a self-centering manner between a cavity in the yaw component and a cavity at one end of the pitch component shaft, so that the pitch component is slide-mounted so it is rotatable at said end both radially and also axially in the yaw component on the basis of the rotation body chucked in the cavities.

2. The surveying device according to claim 1, wherein the surveying device comprises a total station, tracker, or scanner.

3. The surveying device according to claim 1, wherein:

the other end of the pitch component shaft is mounted by a radial free bearing or by a rotation body, in particular a ball, which is chucked in a self-centering manner between

a cavity in the yaw component and

a cavity at one end of the pitch component shaft.

4. The surveying device according to claim 3, wherein the radial free bearing comprises a conventional V-bearing.

5. The surveying device according to claim 1, wherein:

the cavity in the yaw component has at least one channel.

6. A surveying device comprising:

an optical measuring beam path;

a base for positioning the surveying device;

a yaw component, which is mounted so it is rotatable on the base about a standing axis, for the azimuthal alignment of the optical beam path; and

a pitch component, which is mounted so it is rotatable in the yaw component about a tilt axis, for the elevation alignment of the optical beam path, wherein;

a rotation body, in particular a ball, is chucked in a self-centering manner between a cavity in the base and a cavity in the yaw component, so that the yaw component is slide-mounted so it is rotatable both radially and also axially on the base on the basis of the rotation body chucked in the cavities.

7. The surveying device according to claim 6, wherein:

at least one cavity has a widening lateral surface, along which the rotation body slides, while leaving its centering seat, in the event of overload and slides back into its centering seat in the event of relief.

8. The surveying device according to claim 6, wherein:

the rotation body rests by way of at least three contact points, in particular at least partially in a linear or planar manner, in the cavities.

9. The surveying device according to claim 6, wherein:

the cavities are conical boreholes opposite to one another, wherein the conical tapers point away from one another.

10. The surveying device according to claim 6, wherein:

the rotation body is chucked by means of at least one magnet and/or by means of at least one mechanical spring.

11. The surveying device according to claim 6, wherein:

the rotation body is fixedly connected to one of the two cavities.

12. The surveying device according to claim 6, wherein:

the rotation body is a component of the yaw component, the pitch component shaft, or the base.

13. The surveying device according to claim 6, wherein:

the rotor is drivable by a traveling wave motor, wherein the pre-clamping of the axial-radial bearing formed by the rotation body is produced via the pre-clamping element required for the traveling wave motor.

14. The surveying device according to claim 6, wherein:

the rotor is drivable by an axial flux motor, wherein the pre-clamping of the rotation body is produced via the magnetic axial force generated by the axial flux motor.

15. The surveying device according to claim 6, wherein:

the rotation body is ceramic or hard metal material and

the degree of hardness of the material of the cavities is less than the degree of hardness of the rotation body material.

16. The surveying device according to claim 6, wherein:

the centering borehole, which would be required in any case for the machining of the corresponding component on a turning and/or grinding machine, is used as the cavity.

17. A surveying device, comprising:

an optical measuring beam path;

a base for positioning the surveying device;

a yaw component, which is mounted so it is rotatable on the base about a standing axis, for the azimuthal alignment of the optical beam path; and

a pitch component, which is mounted so it is rotatable in the yaw component about a tilt axis, for the elevation alignment of the optical beam path, wherein;

a rotation body, in particular a hemisphere or a half ovoid, is chucked in a self-centering manner in a cavity, which is provided on components of the yaw component or at one end of the pitch component shaft, as a bearing for the pitch component in relation to the yaw component,

so that the pitch component is slide-mounted so it is rotatable both radially and also axially in the yaw component on the basis of the rotation body chucked in the cavity, wherein the rotation body is fixedly connected to the pitch component shaft or the yaw component, in particular is a component of the pitch component shaft or the yaw component.

18. A surveying device comprising:

an optical measuring beam path;

a base for positioning the surveying device;

a yaw component, which is mounted so it is rotatable on the base about a standing axis, for the azimuthal alignment of the optical beam path; and

a pitch component, which is mounted so it is rotatable in the yaw component about a tilt axis, for the elevation alignment of the optical beam path, wherein;

a rotation body, in particular a hemisphere or a half ovoid, is chucked in a self-centering manner in a cavity, which is provided in the base or the yaw component, as a bearing for the yaw component in relation to the base, so that the yaw component is slide-mounted so it is rotatable both radially and also axially in relation to the base on the basis of the rotation body chucked in the cavity, wherein the rotation body is fixedly connected to the yaw component or the base, in particular is a component of the yaw component or the base.