Positioning device and measuring device

Patent metadata

Field	Value
Publication number	US-9382984-B2
Application number	US-201313850791-A
Country	US
Kind code	B2
Filing date	Mar 26, 2013
Priority date	Dec 14, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A positioning for positioning a measuring element ( 2 ) and a measuring device with such a positioning device have an object of providing a positioning device for positioning a measuring element or a measuring device with a measuring element and a positioning device that is a simplification compared to the prior art and that meets the requirements for positioning with respect to accuracy and reproducibility. The object is met in the positioning device in that three wheels are provided ( 3, 4, 5 ), which are designed as a ring gear ( 3 ), a sun and a planetary gear ( 5 ). The ring has an interior space ( 6 ) in which the sun and the planetary are arranged. Furthermore, the planetary is engaged with the sun and with the ring gear ( 3 ).

First claim

What is claimed is:

1. Measuring device, comprising:
at least one measuring element for at least one of determining and monitoring a process variable and
a positioning device for positioning the measuring element having three wheels, a first of the three wheels being a ring gear with an interior space and a center axis, a second of the three wheels being a sun gear with a center axis, and a third of the three wheels being a planetary gear,
wherein the sun gear and the planetary gear are arranged at least partially in the interior space of the ring gear,
wherein the ring gear, the sun gear and the planetary gear arranged and adapted in relation to one another in such a manner that the planetary gear is engaged with the sun gear and with the ring gear,
wherein the planetary gear and the measuring element are connected to one another in such a manner that the planetary gear moves the at least one measuring element,
further comprising a guide with a window,
wherein the ring gear and the guide are arranged in relation to one another such that the axis of the ring gear extends through the window,
wherein the measuring element protrudes through the window,
wherein the measuring element is adapter for at least one of transmitting electromagnetic radiation in a beam direction and for receiving electromagnetic radiation from the beam direction,
wherein the measuring element is arranged relative to the positioning device such that a direction of an emitted beam is inclined at a predetermined angle of inclination relative to a plane in which the ring gear is arranged, and
wherein the measuring device is operable according to the radar principle for at least one of determining and monitoring of a fill level of a medium.

2. Measuring device according to claim 1 , wherein the ring gear and the sun gear are arranged relative to one another such that the center axis of the ring gear and the center axis of the sun gear coincide, wherein the sun gear is arranged to be rotatable about its central axis and such that the planetary gear is movable within the interior of the ring gear around the sun gear such that the ring is fixed for the movement around its center axis.

3. Measuring device, comprising:
at least one measuring element for at least one of determining and monitoring a process variable and
a positioning device for positioning the measuring element having three wheels, a first of the three wheels being a ring gear with an interior space and a center axis, a second of the three wheels being a sun gear with a center axis, and a third of the three wheels being a planetary gear,
wherein the sun gear and the planetary gear are arranged at least partially in the interior space of the ring gear,
wherein the ring gear, the sun gear and the planetary gear arranged and adapted in relation to one another in such a manner that the planetary gear is engaged with the sun gear and with the ring gear,
wherein the planetary gear and the measuring element are connected to one another in such a manner that the planetary gear moves the at least one measuring element,
further comprising a guide with a window,
wherein the ring gear and the guide are arranged in relation to one another such that the axis of the ring gear extends through the window,
wherein the measuring element protrudes through the window,
wherein the measuring element is mounted in the window of the guide via a universal joint.

Assignees

• Krohne Messtechnik Gmbh

Inventors

• Baer Christoph
• Baer Sebastian
• Musch Thomas

Classifications

• F16H19/08 Primary

  for interconverting rotary motion and oscillating motion · CPC title

• G01F23/003

  with a probe suspended by rotatable arms (with floats G01F23/32) · CPC title

• Y10T74/18272

  Planetary gearing and slide · CPC title

• G01F25/0061

  Physics · mapped topic

• G01F23/0061

  Physics · mapped topic