RU176679U1 - INSTALLATION FOR RESEARCH ON THE ABRASIVE WEAR OF THE WORKING BODIES OF THE THRESHING UNIT OF GRAIN HARVESTERS - Google Patents

Abstract

The utility model relates to testing equipment, namely, to installations for testing for abrasive wear of the working bodies of the threshing apparatus of combine harvesters, and can be used as a device for studying friction and wear of materials of the working bodies of combine harvesters. The installation contains a loading hopper, a valve for adjusting the feed of the abrasive mixtures, a threshing device, an unloading sleeve, a belt drive, an electric motor mounted on a metal frame. The drum of the threshing device has the ability to fix the tested working bodies, the removable deck has the ability to install the test strips and contains the tilt bar of the grinding machine. Technical result: increased reliability of the test results for abrasive wear of the working bodies of the threshing apparatus of combine harvesters. 1 ill.

Description

The utility model relates to testing equipment, namely, to installations for testing for abrasive wear of materials of the working bodies of the threshing apparatus of combine harvesters.

A known installation for testing materials for abrasive wear, comprising a housing, a hopper for abrasive, a rotor with radial channels designed to move the abrasive, a rotor rotation drive, a disk mounted coaxially with the rotor, sample holders mounted opposite the channel outlets and connected with the disk, and a mechanism for moving sample holders, including an electric drive and a screw mechanism kinematically connected to it [1].

The disadvantages of this model include a low degree of approximation of the test conditions of the studied samples to the operating conditions.

Also known is an installation for testing for abrasive wear of the working bodies of agricultural machines, comprising a frame on which a reciprocating drive, a sample holder, abrasive material, a loading unit, a strain gauge, a computer, an analog-to-digital converter, an electric motor, a belt drive are installed [2 ].

The disadvantages of this model include a low degree of approximation of the test conditions of the studied samples of the transverse concave bars to the operating conditions, as well as a complex design.

The objective of the utility model is to increase the reliability of the test results for abrasive wear of the working bodies of the threshing apparatus of combine harvesters by developing an installation that will bring the test conditions closer to the operating conditions by creating adequate conditions for the interaction of the test samples and the simulated abrasive medium.

The technical result is achieved due to the fact that the installation for testing for abrasive wear of the working bodies of the threshing apparatus of combine harvesters, containing a loading hopper, a valve for adjusting the flow of the abrasive mixture (a straw-straw mass can be taken as an abrasive mixture), a threshing device, an unloading sleeve, a belt transmission, electric motor mounted on a metal frame, characterized in that the drum of the threshing device has the ability to fix the test workers organs, removable deck has the ability to set the test strips and contain the bar inclination finish threshing device.

The essence of the utility model is illustrated by the drawing: figure 1 is a diagram of the installation for research on abrasive wear of the working bodies of the threshing apparatus of combine harvesters.

The installation for research on abrasive wear of the working bodies of the threshing apparatus of combine harvesters consists of a loading hopper (1), a valve (2) for adjusting the feed of the abrasive mixture, a housing of the threshing device (3), an unloading sleeve (4), and a slope bar of the threshing device (5) , a drum of a threshing device (6) with replaceable working bodies (7), a removable deck (8) with fixed concave metal straps (9), belt drive (10), electric motor (11), metal frame (12).

Installation for research on the abrasive wear of the working bodies of the threshing apparatus of combine harvesters works as follows. In the removable deck 8, the investigated sample of the concave concave plate 9 is fixed in the form of the metal strip of the combine harvester using the bolt connection 13 in two places and is fixed with the test sample in the threshing device 3, the test strips 14 of the drum are fastened with the bolt connection 15 to the housing 6. With the established mode rotation of the drum 6 counterclockwise driven by the electric motor 11 by means of a belt drive 1) abrasive material from the hopper 1 through an adjustable gate valve 2 for loading the bottom of the mouth enters the chamber of the threshing device 3, where there is direct wear of the transverse strip 9 of the deck 8 and the working plate 14 of the drum 6, under the influence of which it rotates, then the abrasive mixture is removed from the working area by the discharge sleeve 4.

After testing, deck 8 is removed from the threshing device 3. Accordingly, a prototype of the transverse concave strip 9 is removed from deck 8, and strips 14 are removed from the drum 6, which are subsequently to be examined for wear.

The proposed utility model in comparison with the known technical solutions allows you to most accurately simulate conditions close to operational when testing the transverse strips of the concave and pests of combine harvesters.

Information sources

1. Patent for invention RU No. 2020460, published September 30, 1994

2. Patent for invention RU No. 2408865, bull. No. 1, published on January 10, 2011

Claims (1)

Installation for testing for abrasive wear of the working bodies of the threshing apparatus of combine harvesters, containing a loading hopper, a gate valve for adjusting the supply of the abrasive mixture (grain-straw mass can be taken as an abrasive mixture), a threshing device, an unloading sleeve, a belt drive, an electric motor mounted on a metal frame, characterized in that the drum of the threshing device has the ability to fix the tested working bodies, the removable deck has the ability to install test strips and contains the tilt bar of the tacking device.

Images