SU1358834A2 - Cleaning of grain combine harvester - Google Patents

Abstract

The invention relates to the field of agricultural engineering. The purpose of the invention is to reduce the loss of grain. Cleaning a combine harvester contains a transport board 1 with a pitched board 2. At the end of the board 2 a comb is attached. In the intake part of the comb, guides for feeding the grain to the fingers are reinforced. Fingers have a box-shaped section of a streamlined shape. At the end of the board 1, the grain wakes up on the board 2. When moving along the fingers, the grain is protected by a comb from the effect of the air flow of the fan 5. This prevents the removal of puny grain. From the fingers, the grain enters the lower grate 6, is cleaned of impurities and sent to the hopper. 4 il. / 2 7; t, Jf 1. (L Figure 1 OS ate OS OS CA: NU

Description

The invention relates to agricultural machinery, can be used in the modernization of combine harvesters and is an improvement to the author. St. No. 1253486.

The purpose of the invention is to reduce the loss of grain.

FIG. 1 shows the cleaning of a combine harvester, general view; in fig. 2 — node I in FIG. one; in fig. 3 is a view A of FIG. 2; in fig. 4 is a section BB in FIG. 3

The grain pile entering the top 10 sieve 3, under the action of oscillatory movements and the air flow of the fan 5 is divided. The straw and other louvre and airflow particles are transported outside the thresher, and the grain spills onto the bottom sieve 6. Neo-grind. The grain delivered to the lower sieve 6 from under the upper sieve 3 and from the fingers 9 of the cattle board 2 is cleared from cleaning the combine harvester includes a transport board 1 with adjustable holes at the end and an attached

to it under the holes of the cattle board 2 ... ... ".", "...". “.

Behind the transport board 1, lobed spikelets are trapped by an extension-upper sieve 3, to which is attached 4 and directed to the secondary center 4. Under the transport board 1 a fan 5 is installed, and under the upper sieve 3 is a lower sieve 6. At the end

cattle board 2 is firmly fixed to a comb of 20 months and is directed to a bunker. 7, made of thin sheet material. In the intake part of the comb 7, the clamping of fingers of a streamlined shape lena guides 8 for feeding grain to grain reduces the aerodynamic junction 9, which have a box section of the comb located in the streamlined shape. the fan outlet, and the box — the cleaning of a combine harvester — the shape of the fingers increases the transmission rate as follows. The ability of the comb fingers during the milling process of the grain pile from under the threshing drums and straw walkers enters the page board 1 and under the action of oscillatory movements moves towards the upper sieve 3. Part of the grain through the holes at the end of the page

minimum number of fingers and at the same time prevents lateral gathering of grain from fingers when working on slopes.

Claims (1)

Invention Formula the board wakes up onto the pitched plank 2, and then gets onto the comb 7, where it is guided by the guides 8 onto the fingers 9. Under the action of a bias and oscillatory movements, the grain along the fingers 9 is guided 35 Ochis -a combine harvester on author. St. No. 1253486, characterized in that, in order to reduce grain losses, the end of the pitched board is provided with a comb with box-shaped fingers with a streamlined shape. bottom sieve 6. When moving along fingers 9, the grain, protected by a comb 7 from the effect of increased velocity of air at the outlet of the fan socket of the fan 5, falls on the beginning of the bottom sieve in close proximity to its working surface, thereby preventing the most puny grains. The grain pile entering the upper sieve 3, under the action of oscillatory movements and the air flow of the fan 5 is divided. The straw and other particles of the blinds and air flow are carried outside the thresher, and the grain spills onto the bottom sieve 6. It is not necessary .. .. ".", "...". “.  The spikelets are caught by extension 4 and sent to the second thresh. The grain that has entered the lower sieve 6 from under the upper sieve 3 and from the fingers 9 of the cattle board 2, is peeled off. The coniferous spikelets are picked up by the extension 4 and sent to the second feed and sent to the bunker. Running fingers of a streamlined shape reduces aerodynamic resistance of the comb, located in the zone of the fan outlet, and the shape of the fingers increases the throughput of the fingers of the comb with the minimum number of fingers and simultaneously prevents lateral gathering of grain from the fingers when working on slopes. Invention Formula Ochis -a combine harvester on author. St. No. 1253486, characterized in that, in order to reduce grain losses, the end of the pitched board is provided with a comb with box-shaped fingers with a streamlined shape. 2 6-s  J T. 9 fUS-J Fy Compiled by L. Manteifel Editor M. TovtinTehred I. VeresKorrektor A. Obruchar Order 5631/2 Circulation 628 Subscription VNIIPI fCCP State Committee on Inventions and Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4