SU1029885A1 - Picker - Google Patents

Abstract

SELECTION, including a frame on which the finger drums are successively selected and supplied on shafts, characterized in that, in order to improve the quality of removal of foreign objects from the selector wheel by stretching the roll in longitudinal and transverse cross sections, the frame is provided with at least one ring direction on the side of the pick-up drum, a wave-shaped section, and the supply drum has discs rigidly mounted on the shaft and hinged tines with spring fingers and rigid to cranks fixed to tine arms, the ends of which are located in the annular guide. (L yu soo oo sd

Description

The invention relates to agricultural machinery, in particular to devices for selecting mowed plants, and can be used on fodder harvesters, balers and pick-up trailers, and.

A pick-up is known, which consists of a shaft, holders with spring fingers and a lever mechanism for moving the fingers, which allows the fingers to make additional transverse movement in the selection and, as a result, pick up foreign objects less.

However, such a device is complicated in construction and does not effectively separate foreign objects from the inner layers of the roll.

The closest in technical essence to the invention is a pick-up including a frame on which sequentially picking and feeding finger drums are mounted. The first of the drums rotates at an outer speed, which is less than the speed of the machine, and the direction of rotation is set so that the fingers near the floor surface move backwards in relation to the movement of the machine. As the ends of the fingers move more slowly than the movements of the machine, they penetrate the material, capture it and feed it back. The second drum rotates in the opposite direction and at a higher speed. He picks up the mass, filed by the first drum, and transmits it to the receiving device of the machine. In the process of transferring the mass from the first drum to the second, conditions are created for the foreign objects to fall out of the roll 2. The disadvantage of this device is that it does not pick out the stones inside or near the top of the roll.

The purpose of the invention is to improve the quality of removal of foreign objects from the picked up roll by stretching the roll in longitudinal and transverse sections.

This goal is achieved in that in the proposed device the frame is provided with at least one annular guide having a wave-shaped section on the side of the pick-up drum, and the supply drum has discs rigidly mounted on the shaft and spring fingers with hinges connected to them and rigidly fixed on the heads Krivoshchipy, the ends of which are located in the annular guide.

FIG. 1 shows a pick-up, side view; in fig. 2 - the same, top view; in fig. 3 - pickup device without ramps.

The device consists of a frame 1 (Fig. 1) with a pick-up finger drum 3 installed on it, mechanisms for adjusting the center distance 4 and

the hanging 5 and the transfer screw 6. The drive of the pick-up reels is driven from the main machine by means of the cardan shaft 7 (Fig. 2), the belt 8

and chain 9 and 10 gears. The pick-up drum 2 is supported on the floor by means of the shoes 11, the second drum rolls across the field on wheels 12.

The feed drum 3 consists of a shaft 13 (Fig. 2 and 3) on which are rigidly fixed

discs 14 with tines mounted on bearings 15 with spring fingers 16. At one end of tines 15, the cranks 17 are rigidly fixed, which with the help of rollers 18 move along an annular guide — running 19. The treadmill 19 is fixed on the frame, is welded and has two ribs between which the rollers 18 move. In addition, the shape of the treadmill is set so that the spring fingers 16

Q in the non-working area, i.e., in the area where lifting and transportation does not occur, enter under slope 20 without crushing and picking up weight. In the area of the meeting and transportation of the selected mass, i.e., in the active section, the treadmill 19 is made profiled, for example, wavy.

Pickup drum 2 is structurally made similar to the second drum, but the treadmill of the drum 2 in the active area does not have a profiled

 forms. On a non-working site, this treadmill allows spring fingers to go under the ramps without pulling the pick.

The device works as follows. A pick-up drum 2 (Fig. 1), the spring fingers of which rotate above the floor with a gap of 20-30 mm, picks up the bevelled mass and transfers it to the drum 3, the trajectory of movement of the fingers 16 of which passes higher than the possibility of touching the fingers with the floor surface. Since the treadmill of the drum 2 in the active area does not have a profiled shape, the selection of plants occurs smoothly, without accelerations in the vertical plane, thus avoiding the loss of the selected weight.

Due to the difference in the peripheral speeds of the drums 2 and 3, the longitudinal stretching of the roll occurs. At the moment of contact of the feed roll, the fingers 16 of the drum 3 begin to oscillate in a vertical plane, so

 As in the active section, the treadmill 19 has a wave-like profile, and the rollers 18, rolling over this section, transmit oscillations to the tines 15 with fingers 16. As a result of the oscillating fingers, the roller is stretched across the cross section, which helps to remove foreign objects from the roll. From the drum 3, the matched plants are transferred to auger 6, which

moves them further to the working bodies of the machine.

When the fingers of the second drum oscillate, some plants fall out of the roll, but the losses here are minimal, since the dropped out plants are picked up by the subsequent teeth and carried away to the auger 6. To work on rolls with different weights, the center distance between the pick-up drums. For this purpose, the adjustment mechanism 4 serves, since with a small center distance and a large mass of a meter of roll, there is an increased loss of the material to be picked.

As a result of the search

laboratory studies found that the selection of foreign objects from the pick roller in the proposed device is more efficient than in the known pick-up, which will avoid the cost of restoring grinding

devices. forage harvesters from breakage when hit by foreign solid objects.

5

Claims (1)

A pick-up device, including a frame on which the finger picking and feeding drums are sequentially mounted on the shafts, characterized in that, in order to improve the quality of removing foreign objects from the pick-up roll by stretching the roll in longitudinal and transverse sections, the frame is equipped with at least one annular guide which has a wavy section on the side of the picking drum, and the supply drum has disks rigidly mounted on the shaft and rake joints pivotally connected to them with spring fingers and rigidly closed cranks replicated on tines, the ends of which are located in an annular guide.