SU900828A1 - Corn thrasher - Google Patents

Description

(54) PORTS

one

The invention relates to an agricultural machinery industry and can be used in corn processing plants as part of a processing line for the preparation of corn seeds, mainly for sowing with pneumatic seed.

A corn grinder is known, which contains a threshing drum with a bar deck and a sieve mill, which has a receiving-and-passing, and seeded sieve with a mounted collector installed on the last one for outputting the cleaned seeds 1.

A disadvantage of this device is the low quality of seed cleaning as a result of mixing of the threshed seeds along the length of the deck.

The purpose of the invention is to improve the quality of cleaning seeds by separating them into two streams with different content of impurities.

This goal is achieved by the fact that the corn grinder is equipped with a dual-speed divider installed under the deck, two trays for separate feeding of seed flows to the seed sieve and an additional collection installed on the latter for outputting the cleaned seeds.

FIG. 1 shows a corn grinder; in fig. 2 shows section A-A in FIG. one.

The maize hammer contains a threshing drum 1 with a bar deck 2, a dividing divider 3 installed under the latter, and a sieve mill, having a tunneled receiving t, a feed 5 and a sieve 6 sieves with the collectors 7 and 8 installed on the last, for outputting trays 9 and 10 for separate feeding of seed flows to the seed screen 6.

The corn hammer is also equipped with an absorption fan 11 for cleaning seeds, flower film and dust and installed above the receiving sieve.

4 with a scraper cleaner 12 for removing the rods A from the receiving sieve A.

The sieve mill consists of two dynamic and mutually balanced bodies installed with the possibility of reciprocating movement. The upper body has two sieves: a receiving k with oval holes of 12x22 mm and a through passage 5 with round holes with a diameter of 10.5 11.5 mm. In the lower body there is a seeded sieve 6 with round holes with a diameter of 5.0-6.5 mm, divided by the collector 8 into two parts and provided with a tray 13 and brushes. reciprocating with the possibility of reciprocating movement along the seed sieve 6,

The dual-pitch divider 3 is installed with the possibility of feeding threshed seeds onto the sieve 5. The top of the dual-pane divider 3 is located 3/5 the length of the threshing drum 1 from the loading end of the latter (located on the left),

Corn hammer works as follows.

Corn cobs are loaded into the threshing drum. The threshed seeds wake up through deck 2, are divided into a two-pitched divider 3 into two streams and enter different areas of the sieve 5. The first stream, less clogged, comes from the initial portion of the threshing drum 1, and the second, more clogged, from the end portion. The threshed rods are fed to a receiving sieve, from which, by means of a scraper cleaner 12, they are taken out of the corn grinder. Seeds that fall into the rods are sifted through the receiving sieve A and are fed to the through sieve 5, where they are connected to the second seed stream. Flower film and dust are brought out of the corn grinder by means of a suction fan 11. The exit from the screen sieve in the form of two streams of seeds through trays 9 and 10 enters different parts of the seeded sieve 6, and the passage in the form of large impurities is taken out of the corn grinder. At the beginning of the sowing sieve, it comes in the form of the first and second streams of purified seeds into collections 7 and 8, respectively.

A passage in the form of fine impurities (seeding) is brought out of the corn grinder on the pallet 13. The brushes 14 clean the holes of the seed sieve 6 from jammed seeds. Purified seeds in the form of two streams can be sent for further preparation for seeding with pneumatic splitting.

The proposed corn grinder design provides high-quality cleaning of seeds from impurities.

Claims (1)

1. USSR author's certificate number 17770, cl. A 01 F 11/06, 196. InomoK