FR2553254A1 - Cutter for silage harvester - Google Patents

Abstract

The crop is pulled into the cutting cylinder (4) by gathering rollers and is cut in conjunction with the whirling blades and with fixed blades (5). The cut crop is pushed through compacting rollers (9,10) at the bottom of the blower duct (8) and is thrown out of the duct by an impeller (11). The crushing rollers condition the crop for storage in a compact space and crush any grains. The blower duct has a swivel joint (7) so that it can be directed into an adjacent trailer.

Description

Chopper
The present invention relates to a harvester-chopper for harvested agricultural products, equipped with a harvesting receiving device provided at its anterior end, with a chopping apparatus following on from the latter. downstream of which there is a fine fragmentation or conditioning apparatus presented in the form of a pair of driven conditioning cylinders, an ascending ejection duct extended by a curved ejection pipe and a posterior acceleration member to project the chopped product out of the ejection pipe.

 In European patent application No. 0 058 431 is described a forage harvesting machine, which has the task of fragmenting the chopped product, in particular corn, as uniformly and finely as possible. To this end, provision is made in the direction of work of the cutting drum, following this, an additional fragmentation device presented in the form of two conditioning or crushing cylinders cooperating with each other. The crushing cylinders transmit the chopped product to two conveyor screws arranged in the direction longitudinal of the machine and which bring it to an expulsion blower or posterior acceleration device. Due to the use of numerous wearing parts, this construction is prone to incidents and very expensive. resides in that the kinetic energy animating the chopped product and produced by the process of chopping and crushing is annihilated by the transport carried out by the screws and must again water to be supplied by the posterior accelerator.

 The object of the present invention is to create a chopper of the kind defined above and in which the product is transported between the chopping apparatus and the crushing apparatus as well as between the latter and the expulsion blower. without the interposition of other carriers.

 This object is achieved according to the invention by the fact that the pair of conditioning cylinders is mounted, without the use of intermediate conveyors, immediately behind the chopping apparatus in the lower part of the ascending ejection duct in front of the rear accelerating member or blower expulsion provided in a known manner in the upper part of the ejection duct.

The preferred embodiment of the invention is described below with the aid of the attached drawing in which
Figure 1 shows schematically, in side view, a chopper of the kind concerned; and
FIG. 2 represents, on a larger scale, the chopping apparatus and the conveying members following it.

 By 1 is designated a self-propelled chopper whose previous feed members 2 bring the harvested product to a chopping drum 4 provided with blades 3 and which cooperates with a fixed complementary blade 5. From there the chopped product passes through a conduit d 'ejection 6 where it undergoes additional fragmentation and accEléråtion. The conduit 6 is extended, by means of a pivoting ring 7, by a curved ejection pipe 8 through which the chopped product is sent for example to a vehicle accompanying the chopper. As shown in FIG. 2, the additional fragmentation device is constituted by two profiled conditioning cylinders 9 and 10 which are driven in opposite directions to one another. The product delivered by the chopping drum in the direction of arrow A passes between the conditioning cylinders 9 and 10 disposed directly behind the chopping drum 4 in the zone of influence of the upward ejec-tion conduit 6, so that above all the grains still present in the chopped product are struck and fragmented. Thanks to the high peripheral speed of the conditioning cylinders 9 and 10, the chopped product is transported, without the interposition of other conveyors, surely to the area of action of a posterior acceleration member 11 mounted under the swivel ring 7 in the ejection duct 6.

Claims (1)

 CLAIM  Harvester-chopper for harvested agricultural products, equipped with a harvesting receiving device provided at its anterior end, a chopping device following this latter and downstream of which is a fine fragmentation device or conditioner presented in the form of '' a pair of conditioning cylinders, an ascending ejection pipe extended by a curved ejection pipe and a posterior acceleration device for projecting the chopped product out of the ejection pipe, characterized in that the pair conditioner cylinders (9, 10) is arranged directly behind the chopping device (4, 5) in the lower part of the ascending ejection duct (6) in front of the posterior acceleration member (11) provided in a known manner itself in the upper part of the ejection duct (6).