SU1690561A1 - Disc harrow - Google Patents

Description

one

(21) 4665873/15 (22) 01.20.89 (46) 11.15.91. Byul. №42

(71) Research and design institute of mechanization and electrification of agriculture of the non-chernozem zone of the RSFSR

(72) A.V. Lavrukhin (53) 631.313.6 (088.8)

(56) Strelbitsky V.F. Disk tillage machines, M .: 1978, p. 135,

USSR author's certificate number 1007700, cl. A 01 B 21/08, 1988.

(54) DISK HARROW

(57) The invention relates to an agricultural technique, in particular to disk

The purpose of the invention is to increase the service life of the tool by eliminating cyclic fluctuations of the soil resistance forces by eliminating the possibility of aligning the disk teeth in a row. The device has an axis 1 on which the disks 2 with a notch are placed. Spacer sleeves 3 are located between the disks 2, and a floating sleeve 4 is placed between the disk 2 and axis 1. Spacer sleeve 3 has the shape of a polygon, the number of its sides is not the number of teeth of the disks. At the sound of work, the discs 2 are buried in the soil and loose. At that time, mating floating sleeves 4 and spacers 3 prevent turning and wear of the discs, 3

The invention relates to agricultural machinery, in particular to disc soil-cultivating tools.

The aim of the invention is to increase the service life of the gun by eliminating cyclic fluctuations of the resistance forces of the soil by eliminating the possibility of aligning the disc teeth in a row.

1 shows a disc harrow; figure 2 - section aa in figure 1; on fig.Z - section bb in fig. one.

The disc harrow is turned on 1, on which cut disks 2 are mounted, for example, with eight teeth with spacers 3 placed between them. Between each disk 2 and axis 1 a floating sleeve 4 is placed, freely mounted on axis 1 and conjugated simultaneously with two spacers bushings 3. Surface referred

with

The spraying of the floating sleeve 4 with the axis 1 has a round shape, and with the spacers 3 and the disk 2 - the shape of the polygon, the number of its sides is often the number of teeth of the disks. Each subsequent disk is set with respect to the previous one with an angular shift of 15 °. Not less than two spacer sleeves 3 are installed in the bearing supports 5, which are mounted in brackets 6 attached to the frame (not shown) of the gun. The disks 2 and the spacers 3 are staggered on the axis 1 with a nut 7.

Disc harrow works as follows.

When the gun moves, the disks 2, recessed into the soil, process it. The reactive forces arising from the interaction of the disk 2 with the soil are transmitted to axis 1 through the floating sleeve 4, which excludes

This is damage to the axle. Pairing the floating sleeve 4 with the spacer sleeves 3 and the disk 2 prevents their rotation and wear, and also allows the disks to be set with an angular offset of 15 ° relative to each other. This prevents the occurrence of cyclic fluctuations in the resistance forces of the soil.

Claims (1)

The invention of the Disc harrow includes a frame and cut-out disks mounted on an axis with spacers placed between them. Phases. 2 Compiled by V.Natahin Editor M. Bokarev Tehred M. Morgental 0 sleeves, with a floating sleeve placed between each disk and the axis, loosely mounted on the axle and associated with spacer sleeves, in order to increase the service life of the implement by eliminating cyclic fluctuations of the soil resistance forces by eliminating The row, cross-section of each floating sleeve and the surfaces of the spacer sleeves associated with it have the shape of a polygon, the number of sides of which is repeated for the number of teeth of the disks. Fig.Z Proofreader T.Paly