RU40833U1 - PLATTER CUTTER - Google Patents

Abstract

The ploughshare made of structural steel includes a back, blade, mounting holes, characterized in that it has a width corresponding to 80 cm, the ploughshare installation angle on the paw is 40 °, the cutting edge sharpening to a thickness of 0.5 mm, the share sharpening angle is 13 °, the unified landing dimensions for fastening to the paw are equal: the distance from the back of the share to the line of centers of the holes corresponds to 15 mm, the distance from the field edge of the share to the center of the first hole corresponds to 51 mm, the distance between the axes of the holes corresponds to 170 mm, unified mounting holes adapted razmerami11 × ⌀20 mm, a hardfacing on the blade, the hardness of the deposited layer is not less than 40 HRC.

Description

The utility model relates to agricultural engineering, namely, to the working bodies of cultivators-plane cutters.

Known shares not hardfaced. The disadvantage of these shares is:

- quick wear.

The problem the proposed utility model is aimed at solving:

- the creation of a share having an increased service life;

- high-quality subsurface tillage at a depth of 18 cm;

To perform this task it is proposed:

- use a strip with a width of 70 ... 90 mm and a thickness of 7 ... 10 mm;

- to make a ploughshare with a length of 680 ... 730 mm;

- the installation angle of the ploughshare on the leg - 4 (Figure 2) to make equal 38 ° ... 42 °, which will provide the necessary angle of the solution of the leg 2γ equal to 76 ° ... 84 ° and a working width of 900 ... 1000 mm. Such a paw opening angle and a working width ensure high-quality moldless processing at a depth of up to 18 cm without cresting on the field surface. In addition, such an angle will ensure a tight fit of the ploughshare to the bit, which will exclude clogging of the paws by stubble and other plant residues during the penetration of the paws into the soil;

- the sharpening angle of the share share 5 equal 13 ° ± 1 ° (Figure 3). Such a ploughshare angle, when mounted on a paw, forms the optimum angle of inclination of the cutting edge to the bottom of the furrow, providing high-quality loosening, lifting and moving the formation.

- sharpen the cutting edge 6 to a thickness of 0.5 mm

- the distance from the back of the share to the line of the centers of the holes 7 is 15 ... 18 mm;

- the distance from the field edge of the share to the center of the first hole 8 is 48 ... 55 mm;

- the distance between the holes 9, 10 and 11 are 160 ... 180 mm;

It is proposed to make landing holes with the following parameters:

- size 12 is - ### U25511 ... ### U25513 mm;

- size 13 is - ⌀19 ... ⌀24 mm.

To create conditions for self-sharpening, the share blade is subjected to induction surfacing with the PG-US-25S hard alloy. This makes it bilayer and

provides self-sharpening during operation due to faster wear of the base material and the appearance of a deposited layer from under it with a thickness of 0.8 ... 2 mm. At the same time, the cutting edge does not lose its sharpness and ensures good quality of loosening and cutting of weed vegetation. The hardness of the deposited layer is not less than 40 NKSe.

Due to the effect of self-sharpening the share blade, the resource increases by 1.2 ... 1.5 times.

Figure 1 shows a plane-cutting paw assembly, which shows the left share - L, the right share - P, and the angle of the leg - 2γ. Figure 2 shows a drawing of the ploughshare, which shows: the width of the ploughshare - 1, length - 2, the angle of installation of the ploughshare on the leg - 4, fixed dimensions - 7, 8, 9, 10. Figure 3 shows a section aa, where shown: thickness - 3, sharpening angle of the share 5, sharpening of the cutting edge 6, the parameters of the mounting hole - 12, 13, and hardfacing - 14.

As a result, the ploughshare with the parameters proposed in the utility model and deposited with hard alloy provides an increase in the resource and high-quality moldless processing at a depth of up to 18 cm.

Claims (1)

The ploughshare made of structural steel includes a back, blade, mounting holes, characterized in that it has a width corresponding to 80 cm, the ploughshare installation angle on the paw is 40 °, the cutting edge sharpening to a thickness of 0.5 mm, the share sharpening angle is 13 °, the unified landing dimensions for fastening to the paw are equal: the distance from the back of the share to the line of centers of the holes corresponds to 15 mm, the distance from the field edge of the share to the center of the first hole corresponds to 51 mm, the distance between the axes of the holes corresponds to 170 mm, unified fixing holes are dimensioned

11 × ⌀20 mm, has a hardfacing over the blade, the hardness of the deposited layer is not less than 40 HRCE.