SU1412713A1 - Arrangement for separating tips from onion bulbs - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to working bodies for the post-harvest processing of onions. The purpose of the invention is to increase productivity and reduce injuries onions. A device for separating the feather from the bulbs contains paired counter-rotating rollers 1 with screw protrusions, stops 2 installed over each pair of rolls with the possibility of reciprocating and swinging movement, and a drive mechanism for the stops. The reciprocating movement of the stoppers promotes the pinching of the bulbs for the rest of the feather, and the swinging movement promotes the release of the bulbs from the restraint. 1 hp f-ly, 6 ill.

Description

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FIG. 2

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular, to working bodies for the treatment of onion crops.

The purpose of the invention is to increase the productivity of the device and reduce the injuries of the bulbs.

 Figure 1 shows the scheme of the proposed device, a cross-section; figure 2 is the same, side view; on -fig.Z - the same, top view, and the drive mechanism of the limiters; in figure 4, the limiter, fragment; Fig. 5 illustrates the structure of the limiter drive mechanism; in Fig.6 is a section A-A in Fig.5.

The device for separating the feather from the bulb consists of paired 1 cylindrical rotating rollers

1c screw tabs, limiters 2, made in the form of rods, installed over each pair of rollers 1, loading zone 3 and unloading 4 bulbs. Working surface limit-. the nicheiters are zigzag-shaped and formed by sections 5 and 6 of different lengths. Section 5 is longer than section 6, and is located at an angle ai. to the axis of the limiter, and section 6 is located-angle / 3

Working surface limiters

2 is formed by several successively installed truncated cones adjoining one another, the smaller base of each of which is facing the loading zone 3. It is advisable to make part 5 of the cone at an angle c / 3–7 ° to the axis of the limiter, and bevel 6 at an angle / and 85 - 90 °. On the side of loading zones 3 and unloadings 4, limiters 2 have support sections 7 installed in guides 8.

The device comprises a mechanism 9 for driving the limiters 2 into reciprocating and swinging movement, which is made in the form of a swinging washer installed by eccentricity to the drive shaft 10 and through a hinge 11 connected to the limiters 2.

The eccentric swivel washer 9 is a cylindrical cam 12 rigidly fixed to shaft 10 by means of a key 13. On the outer cylinder, on the side of cam 12 on the bearing 14 there is a holder 15. Cam 12 together with

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the collar 15 is mounted relative to the shaft 10 eccentrically and with a slope. On the axial hinges 16 mounted on the yoke 15 is installed, the arc 17, which is connected to the hinge 11 by the rod 18.

The device works as follows.

The rollers 1 of each pair rotate towards each other, and the stops 2 mounted above them make a reciprocating and swinging movement at the same time. The stroke of the stops 2 depends on the eccentricity of the swinging washer, and their angle during swinging movements depends on the angle of inclination of the swinging washer.

The onion heap is fed to the processing in the loading zone 3. The helical windings capture the feathers of the bulbs into the interaction zone with the neighboring rollers 1, where the feather is separated from the bulbs. Limiters 2 do not allow: the cabin is completely tightened between the rollers of the rollers, so the separation of the feather from the bulbs occurs at a height from the shoulders of the bulbs, determined by agrotechnical requirements. After separation, the bulbs are retained between the rollers 1 and the stoppers 2 for feather residues. The swinging movement of the stops 2 periodically releases the bulbs from jamming on one side of the stops 2, then on the other. Since the rollers 1 rotate continuously in the same direction, this release does not always occur. The reciprocating movement of the loudspeakers facilitates the advancement of the bulbs wedged between rollers 1 and limiters 2 to the unloading zone 4. The proposed form of limiters 2 contributes to a more intensive advancement of wedged bulbs to zone 4. The main mass of bulbs separated from the pen and free from jamming by the protrusions of the rollers moves to the unloading zone 4. The separated feather from the rollers 1 is removed from the device, and the bulbs from zone 4 are sent for further processing.

The drive mechanism limiters operates as follows. During operation, the shaft 10 rotates with the cam 12. In this case, the plane

The lug 12c yoke 15 is constantly changing, and through the hinges 16 and the arc 17 a swinging (reciprocating-circular) movement is transmitted to the rod 18. The angle of rotation of the rod 18 depends on the angle of inclination of the cam 12. Simultaneously with the swinging movement due to the fact that cam 12 is mounted eccentrically on the shaft 10, reciprocating motion is transmitted to rod 18 through bearing 14, sleeve 15, hinges 16 and arc 17.

The application of the proposed device allows increasing the productivity by 12-18% and reducing the damage of the bulbs by 2-5%.

Claims (2)

1. A device for separating the feather from the bulbs, comprising loading and unloading zones, paired counter-rotating cylindrical rollers with screw protrusions and a restrictor installed over each pair of v. Along them with the ability to move the bulbs to the unloading area, about t that in order to increase productivity and reduce injuries, the limiter Q is installed with the possibility of swinging and reciprocating movement in the axial direction and is made in the form of a rod consisting of successively installed truncated cones, one near the other, the smaller base of each of which is facing the loading zone. 2. A device according to claim 1, characterized in that it is provided with a limiter drive mechanism, made in the form of a swinging washer mounted eccentrically on the drive shaft. 1 Phie. J /  u ///// y ////// // Y777 ///////// I T I-VtljA1 J  V . G7 J " /four . five L HA liuA 12 ten 5