RU153904U1 - GRAIN PRELIMINARY DEVICE - Google Patents

Abstract

A device for pre-threshing grain, placed between the header and the inclined chamber, containing a housing, a beater with a finger mechanism and its drive, working elements, each of which is made of rubberized material of a trapezoidal section and is fixed by means of fastening on an arm with an L-shaped profile, while the rib each working element is placed in the diametrical plane of the beater, characterized in that a base is pressed between each working element and the bracket on the fastening means to the working element, a sleeve made with the ability to move in the hole of the bracket, and a spring, which at one end abuts against the base and the other into the bracket.

Description

The utility model relates to agricultural machinery, namely to machines for harvesting grain crops.

A known combine harvester comprising a header, an inclined chamber, a device for pre-threshing grain with a sieve located below it, a screw, an elevator, a threshing machine, a straw straw walker, a stacker, a cleaning sieve and silos for receiving grain, respectively, from a preliminary threshing device and a threshing machine moreover, a device for pre-threshing grain is installed between the header and the inclined chamber and is made in the form of two upper and two lower rollers / Zernouboro located in two tiers ny harvester: RF patent №2202165, IPC A01D, A01F). / Tseplyaev A.N., Ryadnov A.I., Fedorova O.A. // applicant and patent holder of the Volgograd Agricultural Academy. - No. 20001096559/13; declared 04/17/2000; publ. 04/20/2003; Bull. No. 18, 2004 /.

However, this device for pre-threshing grain has low technological reliability due to the winding of the grain mass on the rollers.

The closest technical solution is a device for preliminary threshing of grain, mainly for seed purposes / Device for preliminary threshing of grain, mainly for seed purposes: RF patent for invention No. 2382542, MKI A 01D 41/00, A01D 41/02 / Ryadnov A.I. , Tronev SV., Sharipov R.V., Skvortsov I.P., Fedorova O.A. // applicant and patent holder of the Volgograd Agricultural Academy. - No. 2008140812/12; declared 10/14/2008; publ. 02/27/2010; Bull. No. 6 /. A device for pre-threshing grain is installed between the header and the tilting chamber, under it there is a screw for feeding untrained grains into the hopper. A beater with a finger mechanism with working elements placed on its surface with the possibility of dismantling, each of which is made of rubberized material of a trapezoidal section, while the edge of each working element is placed in the diametrical plane of the beater. Each working element by means of fastening is fixed on an arm with an L-shaped profile.

The disadvantage of this device is that it mills from the ear no more than 8-10% of the grain with minimal trauma, which does not fully provide the farm with seeds.

The essence of the utility model is as follows.

The problem, which the utility model is aimed at, is to increase the proportion of allocated high-quality grain from the ear.

The technical result is an increase in the proportion of grain allocated from the ear with minimal injury.

The specified technical result in the implementation of the utility model is achieved by the fact that in the known device for pre-threshing grain, mainly for seed purposes, between each work item and the bracket on the fastening means there is a base pressed by a nut to the work item, a sleeve made with the ability to move in the hole of the bracket , and a spring that abuts against its base with one end and the bracket against the other. The utility model is illustrated by drawings.

In FIG. 1 shows the installation location of the device for pre-threshing grain on a combine harvester (side view).

In FIG. 2 is a view A in FIG. 1, a longitudinally-vertical section of a device for pre-threshing grain.

In FIG. 3 is a view B in FIG. 2, a view of the device for pre-threshing grain from the side of feeding the grain mass.

In FIG. 4 is a section GG in FIG. 3, a transverse vertical section of a spacer beater with a finger mechanism and working elements of a device for pre-threshing grain.

In FIG. 5 - place D in FIG. 4, the installation diagram of the working element for pre-threshing grain on the beater body spacers.

A device for pre-threshing grain 1 is installed between the header 2 and the inclined chamber 3, under it there is a screw 4 for feeding untrained grains into the hopper 5 (Fig. 1).

The device for pre-threshing grain 1 is made in the form of a beater 6 with a finger mechanism 7 and its drive installed in the housing and placed on the surface of the beater 6 with equal pitch between the groups of fingers of the working elements 8 (Fig. 2, Fig. 3).

A beater 6 with a finger mechanism 7 with the working elements 8 located on its surface with the possibility of dismantling, each of which is made of rubberized material of a trapezoidal section, while the edge of each working element is placed in the diametrical plane of the beater (Fig. 4).

Each working element 8 is installed on the base 9 (Fig. 5) and its mounting means 10, pressed against the base 9 by the nut 11. The mounting means 10 with the working element 8, the base 9 and the nut 11, and also with the sleeve 12 mounted on it, is mounted on the bracket 13 with an L-shaped profile with the ability to move the sleeve 12 in the hole of the bracket 13. On the sleeve 12, between the base 9 and the bracket 13, a spring 14 is installed, which abuts against the base 9 with one end and the bracket 13 with the other. element 8 is limited by nut 15 and lock nut 16, installing ennyh at the end fastening means 10.

A device for pre-threshing grain works as follows.

When harvesting cereal crops, plant stems are cut by the header 2 and fed into the device for preliminary threshing of grain 1, which is installed between the header 2 and the inclined chamber 3.

When moving the cereal mass in the device for pre-threshing grain 1, the finger mechanism 7 and the working elements 8 placed on the beater 6 act on the cut mass. In this case, the connection between the grain and the spike is broken and partial threshing and isolation of the most ripe and valuable grains, which are then fed by the screw 4 to the elevator and then to the hopper 5 to collect non-injured grain.

Due to the fact that the working elements 8 are not fixed rigidly to the bracket 13 and are able to move along the axis of the fastening means 10 towards the bracket 13 under the action of the bread mass by movable mating "sleeve 12 is the hole of the bracket 13", and in the opposite direction, in connection with the uneven supply of bread mass, with the help of a spring 14, the working elements 8 also act on the ears of cut plants that are not on the surface of the flow of bread mass. This allows you to increase the proportion allocated to the ear of minimally injured grain.

The pre-threshed bread mass by the working elements 8 of the device for pre-threshing grain 1 and the finger mechanism 7 of the beater 6 is fed into an inclined chamber, and then to the main threshing apparatus. Further, the process of threshing pre-threshed grain mass is carried out according to the technological process of a serial combine harvester.

A device for pre-threshing grain allows you to select uninjured grain from a common heap and collect it in a separate hopper for use in the future as seed.

Claims (1)

A device for pre-threshing grain, placed between the header and the inclined chamber, containing a housing, a beater with a finger mechanism and its drive, working elements, each of which is made of rubberized material of a trapezoidal section and is fixed by means of fastening on an arm with an L-shaped profile, while the rib each working element is placed in the diametrical plane of the beater, characterized in that a base is pressed between each working element and the bracket on the fastening means to the working element, a sleeve made with the ability to move in the hole of the bracket, and a spring, which at one end abuts against the base and the other into the bracket.

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