RU156475U1 - AXIAL-ROTOR THRESHING-SEPARATING DEVICE FOR CLEANING MIXED SEEDS OF GRAIN SPIN AND CEREBE CROPS - Google Patents

Abstract

The utility model relates to agriculture, namely to harvesting mixed crops consisting of cereal crops and leguminous crops. Cleaning is carried out using a combined axial-rotary threshing and separating system. It consists of a combination of two sequentially installed axial-rotary threshing-separating devices (LSG) with tangential mass flow. The first MSU provides threshing and separation of leguminous crops, as well as partial threshing and separation of cereal crops. In the second LSU, the final intensive threshing and separation of cereal crops occurs. The proposed system allows to obtain high-quality grain material that meets agricultural requirements, when harvesting mixed crops of crops with various technological properties. 1 ill.

Description

The utility model relates to agricultural engineering, and in particular to devices for harvesting mixed crops with significantly different technological properties, for example, crops consisting of cereal crops and leguminous crops (triticale - white lupine).

Known threshing and separating device of the combine SKD-5 "Siberian" consisting of two threshing devices, between which an intermediate beater with a separating grate is installed. Each threshing machine includes a drum type drum and trellised separating concave. (Klenin N.I., Sakun V.A. Agricultural and land reclamation machines - M: Kolos, 1994 - 751 p.)

A three-drum threshing-separating device is proposed, in which the first and third drums are beaters, and the second drum is made in the form of a rotary separator, which is a hollow cylinder with cone pins located on its outer surface (Kolganov K.G., Chetyrkin B.N., Votsky ZI Combines for two-phase threshing of grain crops (Chelyabinsk: South Ural Publishing House, 1971, p. 120).

The disadvantage of this device is that when harvesting mixed crops of grain crops with different technological properties, low threshing quality and significant grain losses are observed. The device has an insufficient separation area between the first and second threshing drums. A significant part of the free grain of legumes after complete grinding in the first device with a “soft” mode of operation falls into the zone of action of the second threshing machine configured for the “hard” mode necessary for grinding the cereal crop. Intense blows of the whip drum and small gaps in the second apparatus lead to high damage to the legume crop remaining in the straw heap.

The objective of the utility model is to obtain high-quality grain material that complies with agrotechnical requirements when harvesting mixed crops of crops with various technological properties, due to the reduction of macro and microdamage of grain with allowable losses.

The technical result of the device is improving the quality of the threshed grain by reducing its trauma.

The problem is solved due to the fact that the axial-rotary threshing and separating device for harvesting mixed crops of cereal spikes and legumes, including a mechanically connected sequential combination of two axial-rotor threshing and separating devices with tangential mass supply, combined by a transmitting device, the rotor and the separating deck of the first axial-rotary threshing-separating device is installed with increased gaps, providing gentle operation , and the second - with reduced gaps, providing a hard mode of operation of the device.

The device is illustrated in the drawing, which schematically shows a General view of an axial-rotary threshing-separating device for harvesting mixed crops. The device includes a first axial-rotary threshing-separating device with a tangential mass flow 1, a transmitting device 2 and a second axial-rotary threshing-separating device with a tangential mass flow 3.

Combined axial rotary threshing and separating device operates as follows. The inclined chamber conveyor tangentially feeds the processed mass to the rotor of the first threshing and separating device 1, configured for a “soft” mode of operation, where the grain of an easily ground bean crop is not only completely ground, but also completely separated when the mass moves along a helical path. The full selection of legume grain is provided by a large area of threshing and separation in the first device 1. At the same time, a part of the cereal grain crop is also grinded and separated. The remaining plant mass is tangentially transmitted through the transmitting device 2, to the second threshing and separating device 3, which operates in a "hard" mode, which ensures complete grinding of the remaining grain of the spike crop. A significant length of the helical trajectory of the processed mass in the threshing space, with constant intense impact, contributes to the complete selection of grain in accordance with agricultural requirements.

Output. The proposed utility model will allow to obtain high-quality grain material that meets agricultural requirements when harvesting mixed crops of crops with different technological properties.

Claims (1)

Axial-rotary threshing and separating device for harvesting mixed crops of cereal and leguminous crops, including a lead-in part, a rotor and a separating deck, characterized in that the device is a sequential combination of two axial-rotor threshing and separating devices with tangential mass feeding, combined by a transmitting mass device, and the rotor and the separating deck of the first axial-rotor threshing and separating device are installed with increased gaps, provide sparing mode of operation, and the second - with reduced gaps, providing a hard mode of operation of the device.

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