Conveying and separating device for root crop and a method for operating the device
First Claim
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1. A conveying and separating device for root crop, the device comprising:
- a separating stretch comprising at least two rotatingly driven separating rollers, wherein the separating stretch receives a harvested material comprising root crop and admixed parts and wherein the at least two separating rollers transport on a topside of the separating stretch primarily the root crop while the admixed parts are removed in a screening phase by means of a screening gap between the at least two separating rollers;
wherein, by a direct forced cleaning action, the at least two separating rollers are kept free at least of admixed parts that can adhere to the at least two separating rollers;
wherein the at least two separating rollers are roller bodies provided with circumferential entrainment profiles;
wherein the roller bodies interact with one another in a paired arrangement and are driven in rotation to effect transport and separation of the mixture;
wherein the roller bodies are spaced at a spacing from each other and the spacing defines a screening gap between the roller bodies of the paired arrangement;
wherein the roller bodies interact to provide the forced cleaning action in the screening gap;
at least one actuator acting on the roller bodies;
wherein the roller bodies, in addition to being driven in rotation, are acted on by the at least one actuator to generate a radial phase adjustment of the roller bodies relative to each other in that one of the roller bodies is rotated about a pivot angle relative to the other roller body of the paired arrangement and/or an axial movement of the roller bodies relative to each other so that the entrainment profiles of the paired arrangement carry out an axial and/or radial displacement relative to each other and create at least one cleaning gap with adjustable shearing zones in the screening gap to effect the forced cleaning action.
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Abstract
A conveying and separating device for root crop has a separating stretch with at least two rotatingly driven separating rollers, wherein the separating stretch receives a harvested material of root crop and admixed parts and wherein the at least two separating rollers transport on a topside of the separating stretch primarily the root crop while the admixed parts are removed in a screening phase through a screening gap between the at least two separating rollers. By a direct forced cleaning action, the at least two separating rollers are kept free at least of admixed parts that can adhere to the at least two separating rollers.
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Citations
45 Claims
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1. A conveying and separating device for root crop, the device comprising:
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a separating stretch comprising at least two rotatingly driven separating rollers, wherein the separating stretch receives a harvested material comprising root crop and admixed parts and wherein the at least two separating rollers transport on a topside of the separating stretch primarily the root crop while the admixed parts are removed in a screening phase by means of a screening gap between the at least two separating rollers; wherein, by a direct forced cleaning action, the at least two separating rollers are kept free at least of admixed parts that can adhere to the at least two separating rollers; wherein the at least two separating rollers are roller bodies provided with circumferential entrainment profiles; wherein the roller bodies interact with one another in a paired arrangement and are driven in rotation to effect transport and separation of the mixture; wherein the roller bodies are spaced at a spacing from each other and the spacing defines a screening gap between the roller bodies of the paired arrangement; wherein the roller bodies interact to provide the forced cleaning action in the screening gap; at least one actuator acting on the roller bodies; wherein the roller bodies, in addition to being driven in rotation, are acted on by the at least one actuator to generate a radial phase adjustment of the roller bodies relative to each other in that one of the roller bodies is rotated about a pivot angle relative to the other roller body of the paired arrangement and/or an axial movement of the roller bodies relative to each other so that the entrainment profiles of the paired arrangement carry out an axial and/or radial displacement relative to each other and create at least one cleaning gap with adjustable shearing zones in the screening gap to effect the forced cleaning action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A method for separating root crop from a harvested mixture, the method comprising the steps of:
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feeding the mixture onto a separating stretch comprised of at least two rotatingly driven separating rollers that are roller bodies provided with circumferential entrainment profiles; screening the harvested mixture by removing admixed parts from the root crop in a screening phase through a screening gap between the roller bodies that interact with one another in a paired arrangement and are driven in rotation to effect transport and separation of the root crop on the topside of the roller bodies; cleaning directly the screening gap by a forced cleaning action provided by interaction of the roller bodies with each other at least during the screening phase, wherein the roller bodies, in addition to being driven in rotation, are acted on by at least one actuator generating for the forced cleaning action a radial phase adjustment of the roller bodies relative to each other in that one of the roller bodies is rotated about a pivot angle relative to the other roller body of the paired arrangement and/or an axial movement of the roller bodies relative to each other so that the entrainment profiles of the paired arrangement are subjected to an axial and/or radial displacement relative to each other and create at least one cleaning gap with adjustable shearing zones in the screening gap to effect the forced cleaning action. - View Dependent Claims (44, 45)
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Specification