SU883276A1 - Soil loosener - Google Patents

Description

(54) RIDDER

I

The invention relates to machines for the development of frozen and durable soils, namely, rippers.

The known cultivator, inclusive base machine, stands with teeth, equipped with interchangeable tips. One of the posts with the tooth is located above the other and is mixed forward along the movement of the base machine. Each rack develops the environment in layers 1.

The disadvantage of this ripper is the insignificant volume of soil being destroyed due to the fact that both racks with teeth are moving according to the track-to-track scheme at different depth of loosening.

The closest technical solution to the invention is a cultivator, comprising a base machine, a four-link linkage mechanism and a working body containing a middle transverse beam and side racks sprawled behind it, and wedge-shaped tips with cutting edges attached to the struts. The cutting edge of the tips () of the new stand is placed on the edges of the tips of the side posts or on one. level or below 2.

For such a ripper, a very low depth of loosening and, accordingly, the volume of solid or freezing soil destroyed are characteristic.

The purpose of the invention is to increase the productivity of the ripper.

The goal is achieved by the fact that the cutting edge of the pillar tip is located above the cutting edges of the tips of the side pillars with a lead that is 2-3 times the maximum depth of loosening.

FIG. 1 shows a ripper; in fig. 2- the working body of the ripper; in fig. 3 — the process of soil destruction along the core; in fig. 4 is the process of destruction across the width.

The working body of the ripper is mounted on the base machine 1 using a four-link linkage mechanism 2 with a hydraulic cylinder 3 and includes a central rack 4

Claims (2)

20 with a crossbeam 5 on which side 6 and middle 7 are fixed. Replaceable wedge-shaped tips 8 are installed on all racks 5 and 6. The cutting edge of the tip 8 of the middle rack 7 is located above the cutting edges of the tips 8 of the side racks 6 and brought forward relative to them in the direction of movement of the base machine 1. The side racks have guide grooves 9, with which they are mounted on the crossbeam 5. To fix the pillars 7 on the crossbeam 5, there are holes 10, made in the beam 5 and the side pillars 7 with the same pitch. The distance in the projection on the vertical longitudinal plane between the cutting edge of the tip of the middle stand and the cutting edges of the side tips must be greater than or equal to the following relationship: () 2 tg оС tg av where hmax is the maximum loosening depth, m ot is the angle of cutting hail; H is the angle of shear of the soil, the degree of practical use of the distance LH is determined by the following relationship LH (2-3) hn, ax. The ripper works as follows. When the base machine I moves in the area to be loosened with the help of hydraulic cylinder 3, the working body is buried. At the same time, the original soil is destroyed by the middle stand 7 with the tip 8. The side stands 6 destroy the soil in lightweight CONDITIONS — there is already a destroyed zone of soil between these stands. The arrangement of the uprights and cutting edges of the invention allows, with a slight increase in energy consumption, a significant increase in the volume of destroyed soil. The design of the working body allows the distance between the ripper to be varied in width. To do this, it suffices to remove the fingers (not shown) from the mounting holes 10 and move the side posts 6 relative to the crossbeam 5 to one side or the other, and then fix them again. This allows the implement to adapt to the ground conditions in which loosening takes place. The invention includes a ripper, including a base machine, a four-link hitch mechanism and a working body containing a transverse beam, side racks, a middle rack located ahead of it and wedge-shaped tips with cutting edges mounted on the racks, characterized in that, in order to increase the cutting performance, the edge the tip of the center post is located above the cutting edges of the tips of the side posts and with a lead that is 2-3 times the maximum loosening depth. Sources of information taken into account during the examination 1. USSR author's certificate No. 375355, cl. E 02 F 5/30, 1967. 2.Telushkin V.D. Machines for the development of frozen soils. M., “Mechanical Engineering, 1973, p. 45. FIG ..