SU1308252A1 - Thrashing device - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural matine building. The goal is to increase the threshing efficiency and ensure the self-cleaning of the working bodies. The threshing device consists of a drum 1 of a curvilinear form, Dec 2 and 3 of the preliminary thresh and the main deck 4 of the final thresh. Decks 2-4 are fixed on frames 5-7 of a semi-cylindrical shape with radii of curvature and large radii of curvature of drum 1. Frames 5-7 are fixed on housing 8 having an axis 9 of swing, which coincides with the center of radius of curvature of drum I.. 5-7 and decks 2-4 are performed by means of the connecting rod and crank from the engine. Deca 2 produces preliminary separation of, for example, castor-bean boxes into tretinki, which are separated by deck 3. Deca 4 performs the final separation of the seeds from the sheaths of the trehniks. hp f-ly, 4 ill. with (L

Description

The invention relates to agricultural machinery, in particular to devices for threshing and peeling, for example, castor-oil boxes.

The purpose of the invention is to increase the threshing efficiency while ensuring the self-cleaning of the working bodies,

FIG. 1 shows a threshing device, a longitudinal cut; in fig. 2 shows section A-A in FIG. 1 (drum and pre-threshing boards); in fig. 3 shows a section BB in FIG. 1 (drum and soundboard final threshing); on. 4 - view B on

FIG. 1 (threshing device). I

The threshing device consists of a drum 1 of a curved spherical or barrel-shaped form with a constant radius of curvature and working surface in longitudinal section, Dec 2 and 3 of the pre-thresh, main deck 4 of the final thresh, which are fixed on frames 5–7 of semi-cylindrical shape with pa, qi - whiskers of curvature Gd, large radius of curvature of the drum on the size of the gap a, b and h between the latter and decks 2-4, respectively. The semi-cylindrical frame 7 of deck 4 is fixed on case 8, having a swing axis 9, coinciding with the center O of the drum's curvature radius and fixed in 10I. Bearing case 10 is attached by hinge 1 to the machine case with the possibility of tapping or bringing the deck to the working surface of the drum and changing the clearance h between the last. The frames 5 and 6 of Dec 2 and 3 are fixed by hinges 12 and 13 on the case 8 of deck 4, also with the possibility of retracting or bringing these decks 2 and 3 to the working surface of the drum and changing the gaps a and b between it and the decks. The gaps a, b and h are adjusted accordingly by mechanisms 14 to 16. The loading hopper 17 consists of rods 8 and the frame 5 of the first deck 2 of the preliminary thresh. On the housing 8 there is a pin 19 on which one end of the connecting rod 20 is hinged, and the other end of the connecting rod is mounted on the crank 21 connected to the engine 22, for example, via a reducer 23, whose 110A step is connected to the drum 1, the Engine 22 and a reducer 23 are connected by a clutch 24. Before starting work, the gap between the

the first deck 2 and the drum 1 is set by the mechanism 14 within

d a

(one)

The gap b between the second deck 3 of the pre-thresh and the drum 1 is set by the mechanism 15 within

(1l b d.

(2)

and the gap h between deck 4 of the final thresh and drum 1 is set by mechanism 16 within

d h

(3)

5 O Q g, s

five

where d is the average diameter of fruit

boxes; dr — average tretinka diameter;

d is the average diameter of seeds.

with

Threshing device operates as follows.

The fruit boxes 25 loaded in the bunker 17, for example, the castors are dragged by the drum 1 through the gap between it and the first decking 2 of the pre-thresh 2, where they are separated from the tretinka 26. The tretinki 26 enter the gap between the second de-3 of the preliminary thresh and the drum 1, where their separation takes place. Between the drum 1 and deck 4 of the final threshing, a final separation of the seeds 27 from the tretinka shell is performed. At the same time vibrating decks activate the threshing process. This happens in the following way. The axes, and 0.0, of the curvature of Dec 2 and 3 are at an angle to the axis of curvature of deck 4, passing through the center Og of the curvature of the drum, around which deck 4 performs math oscillations. Since decks 2 and 3 are rigidly connected to deck 4, the axes and O363 of the curvature of these decks also made rotative vibrations about their O 5 and Og intersection points with the curvature axis of the 4 deck along the generatrix of the cones with the vertices at the Oj and Og intersections. For this reason, the edges of each deck 2 and 3 alternately approach and move away from the drum 1 in a half-period of oscillation, i.e. the gaps vary with great frequency. The extreme positions of the deck with oscillations are shown by dotted lines (Fig. 2).

31308252. 4

Thus, the threshing of the material-contact of the seeds with the working bodies (boxes and tretinki) in addition to reduces the trauma to the seeds that dig the sheath of friction between it and the working surfaces of the drum and the deck also receives shock loads. The amount of movement of the edges of the deck (change of the gap at the edges of the deck) is provided by the design so that the conditions (I), (2) and threshing are prevented and ensure reliability 3). Between the first deck 2 and the drum GO, the self-cleaning of the working bodies, I the gap a varies in size. 1. The threshing device containing the drum and mounted on the body with the possibility of oscillation of the main deck, is characterized in that

lah (a

B (b

MKKS

max- to; ) than the gap t llin-s) between the second

6 d

deck 3 and drum 1 because

the device is equipped with pre-threshing decks installed on the body, the drum surface is curvilinear in longitudinal section relative to its rotation axis with a constant radius of curvature, and the main deck surface is equidistant relative to the drum surface, while the case is movable to provide the main decanter oscillations relative to center of curvature of the drum while maintaining a constant gap

- - with

(four)

The gap h between the last deck 4 and the drum 1 is constant, since the working surface of the deck moves with oscillations along the axis of the drum 1 concentric to the center of the radius of curvature

last one. Due to this trauma, and to ensure the decks are preliminary;

Seeding of seeds decreases the thresh of oscillations relative to

drum with changing threshing gap.

2. A device according to claim 1, characterized in that each pre-threshing deck is provided with a clearance adjustment mechanism.

In the proposed threshing device, the vibration of decks improves self-cleaning. working organs, activates the threshing process, and the elasticity of the decks and the gentle mode (short duration

thirty

contact of seeds with working organs) reduces injury to seeds,

 threshing and ensuring reliable „„ self-cleaning of working bodies,

Formula of the invention 1. A threshing device containing a drum and mounted on the body with the possibility of vibrations of the main deck, characterized in that, in order to increase the efficiency of the „thresh and ensure reliable„ self-cleaning of the working bodies,

The device is equipped with pre-threshing decks installed on the body, the drum surface is curved in longitudinal section about its rotation axis with a constant radius of curvature, and the main deck surface is equidistant relative to the drum surface, while the body is movable to provide the main decanter oscillations relative to the center drum curvature with constant clearance

Iff

 2 27

U, B.i

See

Phage.Z

19 1

ig.

Editor A, Sabo

W

Compiled by Yu, Blinov

Tehred M. Khodanych, Proofreader A. Zimokosov

1652/3

Circulation 630 Subscription

VNIIPI USSR State Committee

on the inventions and discoveries of P3035, Moscow, Zh-35, Raushsk nab., 4/5

Production:

: igraphic enterprise, Uzhgorod, st. Design,

Claims (2)

Claim 1. A threshing device containing a drum and a main deck mounted on the housing with the possibility of vibrations, characterized in that, in order to improve the threshing efficiency and ensure reliable self-cleaning of the working bodies, the device is equipped with pre-threshing decks mounted on the housing, the drum surface is curved in longitudinal section relative to the axis of its rotation with a constant radius of curvature, and the surface of the main deck is made equidistant relative to the surface of the drum, at m is movable housing to provide the main deck of pendulum oscillation about the center of curvature of the drum while maintaining a constant clearance and decks to provide preliminary threshing drum with respect to the oscillation variation of the threshing gap. 2. The device according to π. 1, characterized in that each pre-threshing deck is equipped with a clearance adjustment mechanism. Fiya. 1 yi, d