UA9438U - Auger device for transporting maize ears - Google Patents

Abstract

An auger device for transporting maize ears comprises a casing, made of pressed elements welded between each other, an auger and a drive fixed in the casing. In the lower part of the casing, that is at the bottom thereof, under the coils of the auger, along axis thereof in pairs dehusking rollers, which rotate in opposite directions in pairs, are placed, and the centres of the dehusking rollers in the cross-section of the device are placed along an arch forming a chute in such a manner as to allow the outer surface of the rollers to embrace the coils of the auger with an equal gap.

Description

Description of the invention

This useful model refers to agricultural engineering, namely to devices for 2 transportation and simultaneous cleaning of corn cobs from wrappers.

The closest in terms of technological process is the corn cob auger taken as a prototype, for example, the KSKU-6 "Khersonets-200" corn harvester (1)

The auger device for transporting corn cobs of the indicated combine (1) is a die-welded casing, an auger and a drive are fixed in the casing.

The disadvantage of such a device is the difficulty of transporting uncleaned corn cobs with a significant content of leaf-stem impurities. This causes an increase in the diameter of the screw, and therefore the size and metal capacity of the transport device. In addition, further transportation of such a pile of corn cobs causes difficulties in the processing of cobs in the technological line.

The task of the useful model is to eliminate the noted shortcomings, namely cleaning a pile of corn cobs from 72 leaf-stem impurities and partial cleaning of cobs from wrappers, which increases the efficiency of the transport device and the cob cleaning apparatus in the technological line of processing corn cobs.

The solution to the problem is achieved by the fact that in the lower part of the auger casing, that is, in its bottom, under the turns of the auger, along its axis, there are pairs of cob cleaning rollers that counter-rotate in pairs, and their outer surfaces are at a minimum distance from the edges of the auger turns.

To increase the reliability of the technological process of cleaning and transporting corn cobs, the centers of the cob cleaning rollers in the cross section of the device are located along an arc forming a trough so that the outer surfaces of the rollers cover the turns of the auger with a uniform gap.

To reduce damage to corn cobs, the edges of the turns of the auger are made elastic, for example, from rubber woven material.

In order to orient the cobs along their longitudinal axes along the rollers, which increases the efficiency of their cleaning, in the cob feed zone, the outer diameter of the auger turns is smaller than in the working zone of cleaning and transportation, and the rollers in the cob feed zone are made with screw flanges.

In order to increase the efficiency of turning the cobs, and therefore their orientation along the rollers, the screw flanges of the upper rollers in the chute are offset by the distance of the screw relative to each other. co

To increase the stability of the movement of the cobs along the rollers in the working area of their cleaning and transportation between pairs of counter-rotating rollers, longitudinal ribs are installed.

The graphic material explains the essence of the useful model: Figure 1 shows a screw device for transporting corn cobs, side view; Ф in Fig. 2 is the same, section along AA.

З The auger device for transporting corn cobs consists of a stamp-welded casing 1, an auger 2, fixed in the casing with the help of bearing supports and a drive 3. In the lower part of the casing, that is, in its bottom, under the turns of the auger, along its axis, cob cleaners are placed in pairs rollers 4, which counter-rotate, and their outer surfaces are at a minimum distance from the edges of the turns of the screw. In the cross section of the device (A-A, Fig. 2), the centers of the rollers are arranged in an arc, forming a groove so that 70 outer surfaces of the rollers cover the turns of the screw with a uniform gap. The edges of the 5 turns of the auger are made of elastic material, for example, from rubber woven tape.

From" In the cob feeding zone (a), the outer diameter of the turns of the auger Da is less than Db. In the cob cleaning and transportation working zone (b), the rollers are made with screw flanges 6, and the flanges of the upper rollers in the chute are offset by the distance of the screw relative to each other. Longitudinal ribs 7 are installed between pairs of counter-rotating rollers. o In the process of operation, a pile of uncleaned cobs enters the cob feeding area (a) and falls on cleaning rollers 4. "" Counter-rotating rollers capture impurities. In this zone, a significant part of leaf-stem impurities is separated. At the same time, if the cob is located on the rollers transversely to their axes, then thanks to the screw flanges of the 6 upper rollers of the chute, they actively turn around and fit into the working streams (c) with 20 pairs of counter-rotating rollers 3. Displacement of the screw flanges of the 6 upper rollers of the chute relative to each other, along the distance of the screw, increases the efficiency of the orientation of the cobs on the rollers. For unobstructed turning of the cobs on the rollers, the gap between the turns of the auger and the rollers in the feed zone (a) must be at least the diameter of the largest cob. This is achieved by the fact that the outer diameter of the turns of the auger D 4 in the cob feeding area (a) is smaller than the diameter of the turns of the auger De in the working area (b) of cleaning and transporting the cobs. Long ribs

Co" 7 ensure stable movement of the cob in the working flow (c) of a pair of counter-rotating rollers, preventing deviation of the cob from the working flow (c) in the working area (b) of cleaning and transporting the cobs. The elastic edges of the 5 turns of the auger reduce their shock impact, and therefore reduce damage to corn cobs.

During the movement of the cobs with the help of turns of the screw in the working zone (b), the wrappers are captured by rollers that rotate 60 degrees in the opposite direction, roll through them and detach from the cob. Separated wrappers and leaf-stem impurities are removed from the under-rolling space with the help of either a sliding-tray device or an active transport device in accordance with the technological scheme.

The cobs cleaned of impurities and partially of the wrappers are moved by the turns of the auger along the casing and sent further in accordance with the technological scheme of the corn harvester or the technological line for the processing of corn cobs.

Advantages of the proposed auger device: - ensures cleaning of the heap of cobs from leaf-stem impurities; - provides partial cleaning of cobs from wrappers and transportation of cobs in the desired direction according to the technological scheme; - ensures the supply of a pre-cleaned pile of cobs to the cob cleaner in the technological line of cob cleaning, which significantly increases the productivity and quality of the cob cleaner.

Sources of information: 1. Khersonets-200 self-propelled corn harvester KSKU-b. Technical description and instruction on / about Zkspluatatsii. Kyiv, Advertising, 1987.

Claims (6)

The formula of the invention 1. An auger device for transporting corn cobs, containing a casing made of stamped elements welded together, an auger and a drive fixed in the casing, which differs in that in the lower part of the casing, that is, in its bottom, under the turns of the auger, along its axis cob cleaning rollers are placed in pairs, which counter-rotate in pairs. 2. The screw device according to claim 1, which is characterized by the fact that the centers of the cob-cleaning rollers in the cross-section of the device are located along an arc forming a trough so that the outer surfaces of the rollers cover the turns of the screw with a uniform gap. Z. The screw device according to claim 1, which is characterized by the fact that the edges of the turns of the screw are made elastic, for example, from a rubber fabric material. 4. The auger device according to claim 1, which differs in that the outer diameter of the auger turns is smaller in the corn cob feeding area than in the cob cleaning and transporting area, and the cob cleaning rollers in the cob feeding area are made with screw flanges. - 5. The screw device according to claims 2, 4, which differs in that the screw flanges of the upper rollers in the chute are offset at a distance relative to each other. 6. The screw device according to claims 1, 4, which differs in that longitudinal ribs are installed between pairs of counter-rotating rollers. (ze) « (o) . and? se) sh" (95) IR e) So 60 b5