SU1564289A1 - Ripper working member - Google Patents

Abstract

The invention relates to earthmoving machines and can be used in rippers for the development of durable soils. The aim of the invention is to reduce the consumption of loosening. The working body of the ripper includes a stand (C) 1 and a tooth 2 with a tip 3. In the lower part, C 1 is equipped with a guide (H) 4 with an axis 5 located at an angle α = 20-30 ° to the vertical, equal to the cleavage angle of the soil. The spring-loaded tooth 2 is installed in H 4. The upper edge (VG) 7 of tip 3 is located at an angle δ * 9860 °. During operation, the soil presses on the VG 7 of the tip 3 and the tooth 2, moving to H 4, compresses the springs 6, the energy reserve. With the formation of cracks along the line of cleavage of the soil, the springs 6 move the tooth 2 to H 4 upwards, tearing off a piece of soil with the least energy consumption. When the VG 7 is located at an angle δ * 9860 °, tip 3 slips along the ground without cleaving it. 3 il.

Description

31

The invention relates to earthmoving machines and can be used in rippers for the development of durable soils. The purpose of the invention is to reduce the loosening power consumption.

FIG. 1 shows a diagram of the work of the working body of the ripper; 2, the lower part of the working member, section; in fig. 3 shows section A-A in FIG. 2

The working body of the ripper includes a stand 1 and a tooth 2 with a tip 3. The stand 1 in the lower part is provided with a guide 4 with an axis 5 located at an angle d iO - 30 ° to the vertical. The tooth 2 is installed in the guide 4 by means of springs 6. At the same time, the upper edge 7 of the tip 3 of the tooth 2 is set at an angle of less than 60, relative to the ground surface. The tooth 2 is fixed relative to the guide 4 by the insertion finger 8. The tooth has protective plates 9 and 10.

The working body of the ripper works as follows.

As a result of the movement of the base machine, tip J is inserted into the ground. Due to the reaction of the soil, transmitted through the tip 3 to the tooth 2, the latter moves relative to the guide 4 downwards and compresses the springs 6. At the same time, potential energy accumulates in them.

With further advancement of the tip 3 in the ground, a critical state occurs, which is characterized by the initial stage of crack formation. The formation of cracks occurs along the cleaved plane AD (Fig. 1). When the cleavage angle is about 20 - 3 at this moment, due to the weakening of the loaded soil mass, the total force of the springs 6 produces the soil with the least energy, since the total force of the springs 6 is directed along the line of force H, which is normal to the cleavage plane AD (Fig. 1), and therefore the minimum force required for cleaving the soil. Since the force H is directed at an angle

c / 20 - 30 ° to the vertical, the axis 5 of the guide 4 must be located relative to the vertical also at an angle of about 20 - 30 °.

If the angle C is less than 20 °

or

0 5

0

five

0

five

more than 30 °, then the cleavage shoulder L is reduced, therefore, to create the same moment for cleaving the soil element it is necessary to apply greater force.

The front angle of the tip 3 and the ground surface, made smaller than the angle rf 60 °, makes it possible to produce a cleavage of the soil mass due to the energy stored by the springs 6. If this angle is greater than 60 °, then the tip 3 slips under the ground mass without the cleavage of the ground.

Claims (1)

Invention Formula The working body of the ripper, which includes a stand and a tooth with a tip, are spring-loaded and mounted for movement when working in height, characterized in that, in order to reduce the loosening power consumption, the stand in the lower part is provided with a guide with an axis at an angle of 20 - 30 ° to the vertical, while the tooth is mounted on the guide, and the upper face of the tip of the tooth is angled, 60 °, smaller relative to the surface of the developed soil. Figz