Device and method for conveying thick matter, in particular concrete, with angle of rotation measurement
AssigneeSchwing GmbH
InventorsSiegfried Trümper, Reiner Vierkotten
Life of this patent
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Abstract
A device for conveying thick matter including a thick matter pump; a feed line which leads away from the pump; a boom which receives the feed line and which includes at least one boom arm and which is arranged on a swivel bogie, wherein the swivel bogie is rotatable for angular orientation of the boom through a drive, in particular a hydraulic motor with a transmission arranged thereon, and a measuring device which includes rotation angle sensors for measuring the rotation angle of the swivel bogie, wherein the rotation angle of the swivel bogie is measured through direct measurement of a rotation angle of the drive or of the transmission arranged between the motor and swivel bogie.
Claims19
A device for conveying thick matter comprising:
- a thick matter pump;
- a feed line which leads away from the pump;
- a boom which receives the feed line and which includes at least one boom arm and which is arranged on a swivel bogie, wherein the swivel bogie is rotatable for angular orientation of the boom through a drive and a transmission coupled to the swivel bogie, wherein at least one of the drive and the transmission include a shaft coupled to a cam disc, the cam disc having at least one scanning cam;
- and
- a measuring device which includes rotation angle sensors for measuring the rotation angle of the swivel bogie,
- wherein the rotation angle of the swivel bogie is measured through direct measurement of a rotation angle of the shaft of the drive or of the transmission through sensing rotation of the cam disc.
A method for determining a rotation angle of a boom of a device for feeding thick matter, wherein the boom is arranged on a swivel bogie which is rotatable about its swivel bogie axis through a drive with a transmission connected thereto, the method comprising:
- determining the rotation angle by counting incremental impulse signals of at least two sensors which measure the number of revolutions of the drive or of the transmission through a cam disc arranged at a shaft of the drive or of the transmission;
- counting the impulses up or down as a function of the direction of rotation determined by the at least two sensors;
- and
- determining a current rotation angle of the swivel bogie based on the counted impulses.
Dependencies are inferred from the claim text.