UA17144U - Stem catcher of a maize combined harvester - Google Patents

Abstract

A stem catcher of a maize combined harvester contains a body, an ear conveyer, a guide and pair of rollers, which are made in such a manner as to allow counterrotation thereof and placed one above the other, transversally to the longitudinal axis of the conveyer. In front of the rollers of the stem catcher above a working slot thereof an active guide as a beater is arranged.

Description

Description of the invention

A useful model refers to agricultural machinery. It can be used in the 2nd development of the harvester to collect the entire biological corn crop in one pass.

It is known that during the operation of the corn harvester after the cob-separating apparatus, especially the picker-striper, that is, with the separation of cobs on fixed plates, a pile of cobs with a significant content of corn stalks, both with cobs and free, is formed. If these leaf-stem impurities are not separated from the cobs before they enter the cob cleaner, they will clog the latter, 70 drastically reducing the quality of cleaning corn cobs from wrappers.

Corn harvesters are known, which have devices for separating corn stalks from a pile of cobs before they enter the cob cleaner. This increases the efficiency of cob cleaning machines, i.e. the quality of cleaning corn cobs from wrappers.

The closest in terms of technological process is the stalk catcher taken as a prototype of the corn harvester 12 Declaratory patent for the invention Mob65944 ДО1а45/02, Byul. Mo4 from April 15, 2004.

Stem catcher |1| is a frame, a cob conveyor, a guide plate and a pair of rollers that rotate towards each other and are placed one above the other across the longitudinal axis of the conveyor.

At the same time, the lower roller is smooth (cylindrical) and equipped with a cob-separating plate, which is placed parallel to its axis, and the upper stem-pulling roller has knife edges and is placed behind the cob-separating plate.

Depending on the diameter of the stalks and cobs of corn, the cob-separating plate is adjustable relative to the lower roller. Alternatively, the lower roller has activators.

The disadvantage of such a stem catcher is that when the stems move along the conveyor, they rest against the guide plate and, due to the resistance against it, deviate from the working gap of the rollers, bypassing the 22 stem catcher. In this way, these stalks are thrown from the conveyor down and enter the cob cleaner, clogging the latter, which reduces the quality of cleaning corn cobs from wrappers.

The task of a useful model is to eliminate the noted shortcomings, namely, to ensure reliable supply of stalks to the working gap of the rollers of the stalk catcher.

The solution to the problem is achieved by the fact that an active guide in the form of a beater is located in front of the rollers of the stem catcher, above its working gap M. "AND

To improve the feeding process and reduce damage to corn cobs, the blades of the guide beater are made of elastic material, such as rubber fabric. --

Depending on the diameter of the stalks and cobs of corn, the cob-separating plate is made with a regulating (/(Hre relative to the lower roller. 3o The essence of the useful model is explained in graphic material: -- - in Fig. 1 a side view of the stalk catcher installed in the upper head of the cob transporter; - in Fig. 2 is the same, with a replaceable bottom roller that has actuators.

The proposed device consists of a frame 1 (Fig. 1), a cob conveyor 2, an active guide Z in the form of a beater, an upper roller 5 with knife ribs 6, a cob separating plate 4, a lower roller 7 of a cylindrical shape with a smooth surface or, as an option , with low activity, for example, in the form of longitudinal bars 8 (Fig. 2). Beater blades are made of elastic material, such as rubber fabric. z" During the operation of the corn harvester, a pile of cobs is fed to the cob conveyor after the cob-separating devices of the combine. Cob heads contain, in appropriate proportions, free cobs, cobs with stems, parts of stems without cobs, and individual leaves. During the movement of such a pile along the conveyor 2, free cobs and leaves are thrown from the upper head of the conveyor downwards and are sent to the cob cleaner by the sloping distribution device. The stalks of corn move further, are picked up by the active guide 3, are captured by the lower roller 7 and enter the working gap of the stalk catcher, that is, into the gap between the lower roller 7 and plate 4. - This improves the technological process of feeding stalks to the working gap of the rollers of the stalk catcher. "drive" 20 Stems are actively stretched by the upper roller 5 with knife ribs 6 and the lower roller 7 of a cylindrical shape mainly due to the introduction of knife blades b into the stem, and not due to its deformation. With

The cobs that are on the corn stalks are torn off on the plate and the lower roller 7. Moreover, the plate 4 is adjusted in the radial direction depending on the diameter of the stalks and cobs.

For the need to increase the activity of stalk capture (especially high humidity), the lower roller 7 22 is replaced by a variable one - with activators, for example, in the form of rods or other structures of activators. c Thanks to the knife ribs of the upper roller, the stalks are cut into short pieces when they are rolled, scattered over the field and easily wrapped up during further tillage. Periodically, the gap between the cutting edges of the knife ribs of the upper roll and the cylindrical surface of the lower roll is monitored and, if necessary, adjusted, including after sharpening the cutting edges. 60 The advantages of the proposed stalk catcher of the corn harvester compared to the prototype are as follows: - the reliability of the technological process of feeding stalks to the working gap of the rollers of the stalk catcher improves; - damage to corn cobs decreases. because Literature:

1. Stalk catcher of a corn harvester. Declaratory patent for the invention Mob65994, AOTa45/02,

Mo4 bulletin dated 04/15/2004.

Claims (2)

2 Formula of the invention 1. A stalk catcher of a corn harvester, containing a frame, a cob transporter, a guide and a pair of rollers, which are made with the possibility of opposite rotation and placed one above the other, transversely 70 to the longitudinal axis of the conveyor, which is distinguished by the fact that in front of the rollers of the stalk catcher above its working gap there is an active guide in the form of a beater. 2. Stem catcher according to claim 1, which differs in that the blades of the beater guide are made of elastic material, for example, rubber fabric. - « « «- и- ч- - with . and? - -I - sh» c» c 60 b5