Weighing device for a plot combine harvester

Abstract

The invention relates to a weighing device for a plot combine harvester, comprising a weighing container guided vertically adjustably on a frame in the manner of a parallel linkage, said weighing container being supported relative to a frame by way of a weighing cell assembly having a weighing cell articulated in the vertical direction between the frame and the weighing container. In order to provide advantageous design conditions, it is proposed that the weighing container is mounted on the frame in the manner of a parallel linkage via leaf springs clamped at both ends.

Claims

1. A weighing device for a plot combine harvester, comprising a weighing container (2) guided vertically adjustably on a frame (1) in the manner of a parallel linkage (3), said weighing container being supported relative to a frame (1) by way of a weighing cell assembly having a weighing cell (12) articulated in the vertical direction between the frame (1) and the weighing container (2), wherein the weighing container (2) is mounted on the frame (1) in the manner of a parallel linkage (3) via leaf springs (4) clamped at both ends, and wherein the weighing cell (12) is pivotably articulated on all sides between the frame (1) and the weighing container (2).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The subject matter of the invention is shown by way of example in the drawings, wherein:

(2) FIG. 1 shows a weighing device in accordance with the invention for a plot combine harvester in a simplified, partly elevated lateral view, and

(3) FIG. 2 shows said weighing device in a rear view from the frame side.

DESCRIPTION OF THE PREFERRED EMBODIMENT

(4) The illustrated weighing device comprises a frame 1 in form of a vertical frame which can be mounted rigidly on a plot combine harvester, and a weighing container 2 which is displaceably guided on the frame 1 in the manner of a parallel linkage 3 in the vertical direction. Said parallel linkage 3 is formed by leaf springs 4 which are clamped on both sides and connect the frame 1 to an auxiliary frame 5 which accommodates the weighing container 2. The auxiliary frame 5 is formed in the manner of a T-shaped support, wherein two leaf springs 4 are clamped to the ends of the transverse leg 6 by means of clamping chocks 7 and a middle leaf spring 4 to the face end of the web 8 of the T-shaped auxiliary frame 5 also by means of a clamping chock 7. The clamping of said leaf springs 4 in the region of the frame 1 occurs similarly via support bodies 9 connected to the frame 1, on which the leaf springs 4 are retained by pressing via clamping chocks 10. A weighing cell 12 is suspended via a universal joint 13 on the upper leg 11 of the rack-like frame 1. On the opposite side, the weighing cell 11 acts via a ball joint 14 on a support lug 15 of the auxiliary frame 5, as is shown especially in FIG. 1. The auxiliary frame 5, which is displaceably guided via leaf springs 4 clamped on both sides in the manner of a parallel linkage 3 in relation to the frame 1 in the vertical direction, is thus suspended via the weighing cell 12 on the frame 1, so that only vertical forces can be absorbed by the weighing cell 12 and transverse forces have no influence on the result of the measurement.

(5) The harvested material to be weighed is filled in batches into the weighing container 2 and is weighed by means of the weighing cell 12. The weighed harvested material can be discharged to a collecting container via a hinged bottom 16 which can be actuated by a swing cylinder 17.