SU1496697A2 - Concave for thrashing device - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery. The purpose of the invention is to improve the quality of the threshing by maintaining the constant gap between the deck and the drum of the threshing device. Parts of the deck are equipped with stops in the form of rollers in contact with the axes of the 3 suspension mechanisms. On the axis x 3, flat surfaces 12 are made in the contact zones. The stops 9, interacting with the axes 3, prevent the elastic elements 7 and 8 from being compressed by the force of the deck and the pressure forces acting on the deck when the threshed mass passes through it. 5 il.

Description

Bb

with:

(

25 l

2

29

25

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to decks of threshing devices.

The purpose of the invention is to increase the quality of threshing by maintaining the constant gap between the deck and the drum of the threshing device.

Fig, 1 shows the proposed eka, side view; FIG. 2 is a view A A of FIG. I; FIG. 3 is a section bb of FIG. 2; in fig. 4 - section BB in fig,; in fig. 5 is a section of GGD in FIG. 1,

The deck consists of two equal 15 parts 1 and 2, formed by the sidewalls, transverse planks and longitudinal rods. Parts of deck 1 and 2 are mounted on the axis x 3 of the suspension mechanism 4 by means of detachable housings 5 20 6 with elastic elements 7 and 8 placed in them, for example rubber tulles, and are driven in a cage movement one relative to the other in the transverse direction masses. Compression of elastic elements and an increase in the gap between the drum and the deck is prevented by the stops 9, made in the form of rollers, 30 interacting with the axles 3 and mounted on the axes 10 in the brackets P, fixedly attached to parts 1 and 2 of the ECI, with rollers axis 3 have flat surfaces 12, 35

Parts 1 and 2 are mounted one inside the other in such a way that the slats and rods of each part are placed respectively between the slats and the bars of the other part. Parts 1 and 2 40 consist of extreme sidewalls, respectively 13, 14 and 15, 16 and intermediate plates 17 and 18, transverse bars 19 and 20 and longitudinal bars 21 and 22. Cross bars 19 of part 1 45 are rigidly connected to its side walls 13 and 14 intermediate plates 17 and loosely installed in the slots 23 of the sidewalls 15 and 16 and intermediate plates 18 of the second part 2. The transverse strips 20 of part 2 are rigidly connected to the sidewalls 15 and 16 and the plates 18 and loosely mounted in the slots 24 of the sidewalls 13 and 14 and plates 17 of part 1, the longitudinal rods 21 of part 1 are fixed in its transverse bars 19 and its one mounted in the apertures 25, the splines 20 with a gap portion 2, a large amount of relative displacement

five

5 0 0 5

0 5 „

deck parts. The longitudinal bars 22 of part 2 are fixed in its transverse strips 20 and freely installed in the holes 26 of the strips 19 of part 1,

Elastic elements 7 and 8 for the installation of each part of the deck and the stops 9 are placed on axis 3 through one. To prevent longitudinal displacement of deck parts along axis 3, sleeves 7 and 8 are placed between the shoulders 27 of axles 3 installed in hubs 28 of the suspension mechanism 4 by using a hydraulic shank 29 in the form of a hydraulic, pneumatic or other vibrator 30 directional , the body of which is fixed on one of the deck parts, and its rod 31 is connected to the other part through the rod 32, which is rigidly connected to the side plates 15 and 16 and the plates 18 and freely placed in the holes 33 of the sidewalls 14 and 17 of the part 1, T ha 32 gives extra The rigidity of part 2, the additional rigidity of part I is provided by the connection 34, fastened to the sidewalls 13 and 14 and the plate 17 of this part and freely passing through the opening 35 of the sidewall 16 and the plate 18 part 2, the sidewalls 13 and 15 are isolated from the threshing device body 36 shock absorbing pads 37, for example of rubber. Equality of the masses of the vibrirudical parts of the deck is ensured either constructively or by setting the balance 38 on the part of the deck that has a lower mass, for example, part 2,

The device works as follows

When the vibrator 30 is turned on, the housing and the rod 31, together with the associated parts 1 and 2, begin to perform synchronous oppositely directed oscillations along the axis of the deck. In this case, the stops 9, interacting with the axes 3, prevent the compression of the elastic elements 7 and 8 under the force of the weight of the deck and the pressure forces acting on the deck when the threshed mass passes through it. Due to this, the constancy of the gap between the deck and the drum is maintained.

The proposed deck allows you to improve the quality of threshing of grain while reducing losses of unmilled grain,

five

Claims (1)

Invention Formula Deca threshing device for ed. St. No. 1384264, about t and i h and so that, in order to improve the quality of threshing of grain, parts of the deck are provided with stops, 4966976 made in the form of rollers installed in vertical planes x and in contact with the axles of the suspension mechanism, while in the contact zones on the axes of the suspension mechanism there are flat surfaces. 23 ftsg.Z i % -thirty - / J -ZU J .fff J5 -5 --f 3J, -18 35 1 33.