SU1754000A2 - Threshing cylinder - Google Patents

Abstract

The invention can be used in threshing devices of combine harvesters for threshing corn. The goal is to increase productivity. On the inner side of the overlappings of the interfacial space 4, there are installed limiting stops 8 located at an angle to the plane of rotation of the threshing drum. By the middle of the threshing drum, the limiting stops 8 are rotated in opposite directions. Dust accumulation in the threshing drum overlaps is eliminated and, as a result, the need to periodically clean the drum to eliminate vibrations of the unit structure is eliminated, which will increase the operational cleaning performance. 4 il.

Description

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The invention relates to agricultural machinery and can be used in the threshing devices of combine harvesters for threshing corn.

A threshing drum is known, consisting of discs, scourges, podichniki and ceilings of the inter-pane space installed in windows made in podbornik.

The accumulation of dust in the inner cavity of the flaps of the overlapping of the interbatch space during the harvesting of corn leads to an imbalance of the drum, resulting in a significant vibration of the combine. Cleaning the guards of overlapping the drum of accumulated dust is laborious and is associated with the expenditure of a large amount of time, which leads to a decrease in the operational performance of the unit for harvesting corn.

The purpose of the invention is to increase productivity.

This goal is achieved by the fact that in the threshing drum the limiting stops are set at an acute angle to the plane of rotation of the drum, and at one half of the length of the drum the acute angle has a positive value, and at the second half

-negative, with the apex of the angle being directed in the direction of rotation of the drum.

Fig 1 shows the threshing drum; in fig. 2 - the same, top view; in fig. 3

-the overlap of the cross-bean space, the cross section; in fig. 4 - overlap, bottom view.

The threshing drum consists of discs 1, on which podichniki 2 with whips 3 are fixed. Between the podichniki there is an overlap of the interfacial space, consisting of a flap 4 and fixing

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elements 5, fixed, for example, with the help of bolts 6. On the flap, on one side, hooks 7 are made, which are inserted into the windows of the sub-boom 2. There are restrictive stops 8 on the inside side, located at an acute angle of 5-25 ° to the drum plane , on one half of the drum, the sharp angle is positive, and on the second - negative.

Preparation of the threshing drum for work is carried out as follows. The flap 4 is inserted into the space between the whips 2 in such a way that its hooks 7 are inserted into the openings of the sub-boom. In the openings of the opposite subframe, locking elements 5 are inserted, which are fixed with bolts 6. During the threshing drum operation, restrictive stops 8, installed at an acute angle, create air streams directed along the inner side of the interfacial spaces. Thanks to that ribs

tilted in opposite directions, the air flow is divided into two streams and directed from the middle of the threshing drum to its ends and dust is carried out, as well as

small admixtures of a pile of cobs outside the drum. This eliminates the accumulation of dust in the overlap of the threshing drum and, therefore, the need to periodically clean the drum from dust.

to eliminate vibrations of the assembly design, which allows for improved cleaning performance.

Claims (1)

The invention formula Threshing drum by author. St. No 1387907, characterized in that, in order to increase productivity, the limiting stops are installed at an acute angle to the plane of rotation of the drum, with the acute angle at one half of the drum length having a positive value and negative at the second, with the apex of the angle being directed in the direction of rotation the drum. FIG. 2