PL151548B1 - Chaff cutter with the system of soil surface copying through adapter of a harvester,especially of green fodder harvester - Google Patents

Description

REPUBLIC POLAND PATENT DESCRIPTION 151 548 Additional patent to patent no. tlUELHil β G and L U Reported: 86 11 11 / p. 262362 / in? Priority - Int. Cl. ⁵ A01F 29/00 A01D 43/08 OFFICE PATENT Application announced: 88 08 04 RP Patent description published: 1991 02 28

Creators of the invention: Krzysztof Melinger, Jerzy Pińczak

The holder of the patent: Poznańska Fabryka Maszyn Żniwnych AGROMET, Poznań / Poland /

MELTING HOUSE WITH A SYSTEM FOR COPYING THE SOIL SURFACE BY A COMBINE ADAPTER, ESPECIALLY GREEN

The subject of the invention is a forage harvester with a soil copying system through a combine harvester adapter, especially forage.

There is a forage harvester with a longitudinal copying system, which follows the soil surface by rotating the forage harvester body with the adapter attached to it around the axis of the knife drum, or by rotating the adapter around one of the attachment points to the forage harvester body, or by attaching the adapter to the forage harvester body by means of a system leverage. Cross-copying systems are realized by rotating the adapter around one of the attachment points to the forage harvester's body, or by turning the adapter around its axis. The longitudinal copying systems are realized by combining one of the longitudinal copying methods with one of the transverse copying methods, or by using an articulated quadrilateral system associated with the combine frame. The disadvantages of known solutions were incomplete copying of the soil surface, loading the forage harvester with large pressure springs, oo was associated with larger dimensions of the copying system

The aim of the invention is to develop a forage harvester construction in which the longitudinal and transverse copying system would be completely connected to its body and form a single unit with the forage harvester.

The essence of the invention is that two upper arms and two lower arms are articulated to the body of the forage harvester, to which the frame for attaching the adapter is articulated. The lower arms are connected to the forage harvester's body by a spring with adjustable tension through an adjusting screw. The upper arms consist of two parts connected by a turnbuckle for adjusting these arms.

The advantage of the solution according to the invention is that the combine adapter ensures good soil surface contouring, which reduces the loss of green mass and improves the co-operation of the chopper with the discharge channel.

151 548

151 548

The subject of the invention is shown in the embodiment in the drawing, in which Fig. 1 schematically shows a side view of the forage harvester attached to the harvester frame and the adapter attached to it, and Fig. 2 shows a top view of the front part of the forager harvester.

The forage harvester with the copying system according to the invention consists of a body 1 in which the knife drum 2 is mounted. The knife drum 2 cooperates with an adjustable counter-blade 3. In the front part of the body 1, two lower feeding rollers 4 and two movable upper feeding rollers are permanently mounted. 5 compressing the cut plant mass. To the body of the chopper 1 are attached blades 6 for sharpening the knives of the knife drum 2. Two lower arms 7 and two upper arms 8 are articulated to the body of the chopper 1. A frame 9 is articulated to the lower arms 7 and upper arms 8 to attach the adapter . Fixing the frame 9 to the lower arms 7 and upper arms 6 allows it to move upwards or downwards and rotate in a plane perpendicular to the longitudinal axis of the forage harvester. These movements allow the adapter to follow the longitudinal and transverse soil surface. The lower arms 7 are additionally connected to the forage harvester's body 1 by means of springs 10. The tension of the springs 10, depending on the weight of the adapter, is regulated by means of adjustment screws 11. The upper arms 8 can be adjusted in length with turnbuckles 12. Changing the length of the upper arms 8 makes it possible to adjust the angle of inclination of the knives of the cutting unit of the adapter in relation to the soil surface. The forage harvester is rotatably mounted to the harvester frame 15 in the axis of the cutter drum 2. The cutter drum 2 is driven by a pulley 13 · To change the position of the forage harvester from transport to working position and vice versa, two hydraulic cylinders 14> one end of which are attached to the harvester frame 15 and the second one to the body of the forage harvester 1 The forage harvester is stationary during work and only the adapter follows the soil surface

17. The immobilization of the forage harvester during operation has an influence on the good cooperation of the knife drum 2 with the discharge channel 16.

Claims (2)

Patent claims 1. A forage harvester with a soil surface copying system through the combine harvester adapter, especially for forage harvester, attached to the combine structure, having a body with a knife drum with an adjustable counter-blade and rollers for feeding and compressing the vegetable mass, characterized in that two articulated parts are attached to the forage harvester's body / 1 / upper arms / 8 / and two lower arms / 7 /, while a frame / 9 / is articulated to the upper arms / 8 / and lower arms / 7 /, used to attach the adepter / 17 /, the lower arms / 7 / connected they are equipped with a forage harvester body / 1 / spring / 10 / with adjustable tension through the adjustment screw / 11 /. 2. Forage harvester with copying system according to claim A device according to claim 1, characterized in that the upper arms / 8 / consist of two parts connected by a turnbuckle / 12 / for adjusting the length of the arms. 151 548 β 1 13 6 77 / ^ V / AW / A <V / A \\ / 7 // 12 8 Fig.1