SU1576004A1 - Device for digging out root and tuber crops - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to machines for digging of root and tuber crops. The purpose of the invention is to increase productivity and separation capacity by eliminating drum blocking. The device comprises a drum having the shape of a truncated cone, consisting of rods 1, connected to a hinge on the front ring 3 with curvilinear knives 4, which are rigidly fixed with needles to the drive shaft. Disk disc has longitudinal grooves located radially around the circumference by means of the spokes 8, the hub 9 is freely mounted on the drive shaft. The rear disc 7 has longitudinal grooves located radially. The hub 9 of the disk 7 interacts with the spring 10. The drum faces the smaller base forward in the direction of travel, and the rods are covered with elastic material. During the forward movement of the unit, the device, rotating from the drive shaft, crashes into the soil and delivers the mass to the inside of the drum. Under the influence of the friction force, when interacting with the rods, the layer crumbles and spills through the rods 1, and the roots and tubers move to the conveyor 24. 2 CFs, 5 ill.

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to machines for digging of root and tuber crops.

The purpose of the invention is to increase productivity and separation capacity by eliminating drum blocking.

FIG. 1 shows a device for digging of root and tuber crops, general view; in fig. 2 is a section A-A in FIG. 1; in fig. 3 is a section BB in FIG. one; in fig. 4 is a view of B in FIG. one; in fig. 5 - bar, cut.

A device for digging root crops contains a drum having the shape of a truncated cone, consisting of rods I, connected by a hinge 2 on the front ring 3 with curvilinear knives 4, which is rigidly fixed to the shaft 6 with needles 5

The rear ring 7 has grooves located radially around the circumference. Through the spokes 8 and the hub 9 is freely mounted on the shaft -6. The hub 9 cooperates with the adjusting device 11 by means of the spring 10. Or the turning of the rear ring 7 the hub 9 on the shaft is fixed by a cap 12 with the projections 13.

To change the angle of inclination of the device and the depth of undermining, shaft 6 by means of regulating suspensions 14 is connected to movable Plank 15, which is fixed by means of cable 16, lever 17 and shaft 18 on main frame 19 and arm 20 to hydraulic cylinder 21. Transporting element 22 with elastic fingers 23 is installed in front of the conveyor 24 at the exit under the bars 1 with a gap.

The rods 1 forming the working, separating and transporting surfaces of the drum are covered with elastic material 25 and have rectangular protrusions 26 located 3/4 of the length of the rod and 1/4 of its length at the exit without edges with an elastic coating. The rods are placed in the grooves of the rear ring 7.

The device works as follows.

During the forward movement of the assembly, the device, rotating from the shaft 67, crashes into the soil with curvilinear knives 4 and delivers the mass to the inside of the drum. Under the action of friction on the rods, the formation is separated

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on the part of the spokes 5 and elastic protrusions 26, rises on the working surface of the drum and moves to the place of unloading. In doing so, it rises up and is dropped down repeatedly. The spokes 8 of the rear ring 7 perform additional crushing of the soil, which improves its separation through the rods. Under the action of a constantly varying mass pressure, the hub 9 of the rear ring 7 compresses the spring 10 and through the spokes 8 the ring 7 moves back, and the grooves relative to the rods 1 also move, causing them to converge and diverge relative to the shaft 6 and one relative to the other. After reducing the load on the ring, the spring retracts it to its original position. This creates a vibration of the bars 1, which increases the separating ability of the drum. Consequently, the mass inside the drum is separated and advanced with shear, rotation. Then the partially cleaned root crops and the remaining mass fall onto the elastic fingers 23 of the transporting element 22, which performs additional cleaning of the root crops from the soil, after which it is dropped onto the conveyor 24.

Claims (3)

1. A device for digging root crops, containing a frusto-conical shape with an inclined shaft, a drum made of front and rear rings connected by rods, characterized in that, in order to increase productivity and separation capacity by eliminating clogging of the drum, the rods are mounted on the front ring by means of hinges, and on the back ring the rods are placed in the made longitudinal grooves, while the back ring is mounted for movement along the shaft and spring-loaded, and each current is provided with at least two projections. 2. A device according to claim 1, characterized in that the surface of each bar with protrusions is covered with an elastic material. 3. The device according to claim 1, characterized in that the surface of the conveying element is made along a concave curve. 22 1 26 W && LC & AT 5 Fig.Z Vid srftifl & b tftftfA A $ S $ № & ±. Ф Fy 25 / SUUUHUHU . X .AVSWVy H.L.