SU1496687A1 - Machine for harvesting standing crops - Google Patents

Abstract

The invention relates to agriculture, in particular, to harvesting machines for harvesting grain at the root. The invention makes it possible to reduce grain losses. The threshing device has a deck with pins 18 located on the teeth x 13 of the comb 12, and a pin drum mounted rotatably with an adjustable rotational speed, which interacts with a concave drum. Between the first and the last in the course of the machine pins concave adjacent grooves installed reflectors 19 in the form of vertical stripes. The side surfaces of the comb teeth are provided with nozzles 20 that are flush with the surfaces with the direction of the air jet towards the feed of the heads into the grooves of the comb. When the aggregate is operating, the spike enters the area of the pins, is threshed by the method of combing, which ensures the complete threshing of the grain from the ears. The grinded grain is fed by a screw into the cleaning zone and then into the bunker. 2 hp f-ly, 3 ill.

Description

31496

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to a harvesting machine.

The purpose of the invention is to reduce grain losses.

Fig. 1 schematically shows a machine for harvesting grain on the vine, a general view; FIG. 2 is a threshing device, top view; in fig. 3 shows section A-A in FIG. 2

In housing 1 with wheels 2 and 3, the known cleaning sieves, fan and conveying devices are mounted. On the housing 1 there is installed a bunker 4 with an unloading device 5, an engine 6, a compressor 7 and a control cabin 8.

The threshing device 9 is connected to the body of the combine 1 movably, for example, on vertical guides 10 with hydraulic cylinders 11, which provide adjustment and raising and threshing of the thresher depending on the height of the harvested crops.

The gripping guide ridge 12 is located in the plan at an angle of, for example, 20 ° relative to the transverse axis of the grain-harvesting unit and contains teeth 13 forming the working channels 14. Teeth 13 and working channels 14 are located along the longitudinal axis of the grain-collecting unit.

In the supports at the ends of the gripping-guide comb 12, a baby machine 15 is installed with pins 16, which receives rotation from a hydraulic motor that is adjustable in rotational speed 17. The gripper-guide comb

12 at the same time is a concave and is provided with pins 18 located along and at the base of the teeth 13. A reflector 19 is mounted in the form of a vertical strip between the first and last pins.

Left side surfaces of the teeth

13 are equipped with nozzles 20 and 21, which are installed in the recesses flush with the surface, and the right ones - only with nozzles 20. The threshing device 9 is equipped with a casing 22 and a transport screw 23,

The harvesting unit operates as follows.

The harvesting unit cleans the grain field. The height of the threshing device 9 is adjusted so that only 14 stems enter the channel 14

five

0 5

0

five

0 j

0

five

plants, and the ears fall into the threshing zone. - in the area of the pins 18.

The tooth 13 enters the mass of the stems and directs them to the channel 14, and the air jets from the nozzles 20 and 21 feed them into the grooves in a compacted form. The supply of air jets from the nozzles 20 upwards at an angle of 20 (FIG. 3) contributes to the straightening of the ears to a vertical position, and from the nozzles 21 it facilitates the feeding of the threshed grain from the threshing zone to the auger 23 zone.

Ear, falling into the area of the pins, are threshed by the method of combing, which ensures the complete threshing of the grain from the ears. The reflector 19 does not allow the ingress of grain into the adjacent threshing zone — into the channel 14. The grinded grain by the screw 23 and other conveying devices is fed into the cleaning zone of the combine, and then into the bunker 4.

The threshing heads, when the machine is moving, due to the tension of the stems, leave the channels 14, bend under the threshing machine and combine and remain on the field. After mowing, they are removed from the floor using a simplified technology.

P-rmula of the invention

C 1. A machine for harvesting grain at the root, containing a threshing device located in the casing at the level of the plant ear and made in the form of a driving pin drum and deck, a comb installed across the entire width of the threshing device forming the working channel arranged parallel to the longitudinal axis of the machine , pneumatic conveying device, in order to reduce grain losses, the deck is made in the form of pins mounted on the teeth of the comb along their longitudinal axis, and the axis of the ftovo th drum is set at an angle to the longitudinal axis of the machine, and between the first downstream movement of the last pin and the adjacent teeth of the comb reflectors are installed.

2. Machine pop.1, characterized by the fact that the pneumatic conveying device is made in the form of a compressor connected by pipelines with nozzles located on the top and side surfaces of the comb pins.

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Editor M.Petrova

Compiled by A. Barsov Tehred A. Kravchuk

sixteen

22

Corrector.Patay

Claims (3)

The claims "1. A standing grain harvesting machine containing a threshing device located in the casing at the level of the spike part of plants and made in the form of a drive pin drum and deck, a comb installed across the entire width of the threshing device, forming working channels located parallel to the longitudinal axis of the machine, a pneumatic conveying device, characterized in that, in order to reduce grain losses, the deck is made in the form of combs mounted on the teeth along their longitudinal axis of the pins, at The axis of the pin drum is mounted at an angle to the longitudinal axis of the machine, and reflectors are installed between the first along the direction of travel and the last pins of adjacent teeth of the comb. 2, The machine according to claim 1, characterized in that the pneumatic conveying device is made in the form of a compressor connected by pipelines to nozzles located on the upper and lateral surfaces of the fingers of the comb. ^s 1496687 ⁶ 3. The machine according to π, 1, of the distinctive drum is made with the possibility of a p. A. With the fact that the pin drive. changes in the frequency of rotation of the drum.