Harvesting machine, especially a self-propelled pick-up chopper

• US 20010037638A1
• Filed: 04/19/2001
• Published: 11/08/2001
• Est. Priority Date: 05/04/2000
• Status: Active Grant

• Current Assignee: Maschinenfabrik Bernard Krone GmbH (Bernard Krone Holding SE & Co. KG)
• Original Assignee: Maschinenfabrik Bernard Krone GmbH (Bernard Krone Holding SE & Co. KG)
• Inventors: Krone, Bernard, Strobel, Thomas
• Granted Patent: US 6,510,679 B2
• Time in Patent Office: Days
• US Class Current: 56/504
• CPC Class Codes: A01F 29/10 Feeding devices

Abstract

A harvesting machine, especially a self-propelled pick-up chopper for picking up and chopping corn, wilted grass, green feed and similar harvested material includes a feeding housing, which is disposed ahead of a chopping device and accommodates feeding rollers, which can be driven. In order to have created a harvesting machine, which can be adapted to different use conditions, provisions are made so that more than two pairs of feeding rollers are provided, which are disposed consecutively in the feed-conveying direction and the upper rollers of which in each case can be driven over a common driving mechanism the common driving mechanism for adjusting the height of the upper rollers, having at least one driving element, which passes through the feeding housing and the position of which can be changed, and this driving element and the upper rollers being disposed so that they can be shifted by sliding in each case in guides at the side of the feeding housing.

Claims

1. A harvesting machine, especially a self-propelled pick-up chopper for picking up and chopping corn, wilted grass, green feed and similar harvested material with a feeding housing (8), which is disposed ahead of a chopping device (7) and accommodates feeding rollers (9), which can be driven, wherein more than two pairs of feeding rollers (9) are provided, which are disposed consecutively in the feed-conveying direction and the upper rollers (9) of which in each case can be driven over a common driving mechanism (17, 18), the common driving mechanism (17, 18), for adjusting the height of the upper rollers (9), having at least one driving element (17), which passes through the feeding housing (8) and the position of which can be changed, and this driving element (17) and the upper rollers (9) being disposed in each case so that they can be shifted by sliding in each case in guides (13, 14, 15, 16) at the side of the feeding housing.

2. The harvesting machine of

claim 1

, wherein the upper rollers (9) are supported so that their height can be adjusted in rocker arms (23) disposed at the side of the feeding housing (8).

3. The harvesting machine of

claim 1

, wherein the rocker arms (23) of the upper rollers (9) are mounted outside of the bearings of the upper rollers (9) so that they can be swiveled about a stationary axis 24.

4. The harvesting machine of

claim 1

, wherein a total of three pairs of feed rollers (9) are provided consecutively in the feed-conveying direction.

5. The harvesting machine of

claim 1

, wherein a driving element (17), which passes through the feeding housing (8), is provided for the common driving mechanism (17, 18) of the upper rollers (9).

6. The harvesting machine of

claim 1

, wherein the driving element (17), passing through the feeding housing (8), has two moving joints within the feeding housing (8).

7. The harvesting machine of

claim 6

, wherein the moving joints are constructed as universal joints.

8. The harvesting machine of

claim 1

, wherein the driving element (17), passing through the feeding housing (8), is guided at one end in a diagonally aligned guide (16).

9. The harvesting machine of

claim 8

, wherein the upper roller (9) is disposed so that it can be shifted by sliding against the force of at least one spring (25).

10. The harvesting machine of

claim 1

, wherein the guides (13, 14, 15) for the upper rollers (9) are aligned parallel.

11. The harvesting machine of

claim 1

, wherein the feeding rollers (9) have a decreasing roller diameter in the direction of conveying.

12. The harvesting machine of

claim 1

, wherein the driving speed of the feed rollers (9) can be varied.

13. The harvesting machine of

claim 1

, wherein a metal detector is assigned to the feed rollers (9).

14. The harvesting machine of

claim 1

, wherein a moisture sensor (22) for the harvested material is assigned to the feed rollers (9).

15. The harvesting machine of

claim 14

, wherein the moisture sensor (22) has a device for measuring the electrical conductivity.

16. The harvesting machine of

claim 14

, wherein the moisture sensor (22) in each case is disposed at a housing wall (12) of the feeding housing (8).

17. The harvesting machine of

claim 14

, wherein the moisture sensor (22) is connected over control electronics with the driving mechanism of the feed rollers (9).

18. The harvesting machine of

claim 14

, wherein the moisture sensor (22) is connected with nip rollers (26) in such a manner, that the distance between mutually assigned nip rollers (26) can be varied as a function of the moisture content determined.