UA124776C2 - METHOD OF RESTORATION AND STRENGTHENING OF THE NOSE PART OF THE PLOW LEMESH WITH EARNING AND RADIATION - Google Patents

Abstract

The method of restoring and strengthening the nose of the ploughshare with abrasion and radiation wear belongs to agricultural engineering. The claimed method of restoring and strengthening the nose of the ploughshare differs from those known in that determine the inadmissible abrasion of the ploughshare sock and radial wear of its nose and make a new insert that covers both types of inadmissible wear, cut the nose of the ploughshare which is welded to the ploughshare along the entire cutout, and the working surface of the welded insert is strengthened by soldering high-hardness plates of an alloy based on tungsten or other carbide metal and restore the original shape of the ploughshare and sharpen its working edge is carried out non-working electrocontact method. The previously mentioned method provides an increase in the strength of the part of the ploughshare that is subject to radial wear, and prolong the life of the restored ploughshare.

Description

insert element, which is welded to the ploughshare along the entire cutout, and the working surface of the welded insert element is strengthened by soldering to it plates of high hardness made of an alloy based on tungsten or other hard alloy metal, and restoration of the initial shape of the ploughshare and sharpening of its working edge is carried out from the non-working side by the electrical contact method.

The previously mentioned method provides an increase in the strength of the part of the ploughshare that is subject to radial wear, and an extension of the period of use of the restored ploughshare. I am KE

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Fig. 2

The invention belongs to the field of agricultural engineering and can be used in the repair of plowshares.

There is a known method of restoring and strengthening plowshares, in which the worn front and lower parts of it are cut off, insert overlay elements of the front and lower parts are formed, and they are welded in place of the cut ones, and heat treatment is carried out, which ensures the restoration of the shape of the share (patent KO 2125507, IPC V2ZR 6/00).

The disadvantage of this method is a decrease in the strength of the toe of the ploughshare, the need for heat treatment of the entire ploughshare, and a low service life of the restored ploughshare due to the appearance of radial wear of its field edge.

There is also a known method of restoring and strengthening the front part of the plow blade with abrasion and radial wear, which includes the manufacture of an insert element from a steel plate covering the unacceptably worn blade tip, removing the remains of this blade tip according to the dimensions of the manufactured insert element and welding the manufactured insert element in its place and improving the radial wear of the share by applying on it rollers of hard material with a certain step (patent NO 2413601, АО1В 15/04).

This method of restoration and strengthening of the front part of the blade with abrasion and radial wear is the closest analogue and is taken as a prototype.

The use in this method of restoring the worn part of the ploughshare tip by replacing it and improving the radially worn part of the ploughshare by applying reinforcing rollers made of materials of increased strength to it with a certain step ensures the restoration of the shape of the ploughshare and a partial increase in its strength and an increase in the service life.

However, this method also has drawbacks. Thus, the strengthening of radially worn parts of the blade by applying reinforcing rollers made of solid material to it with a certain step provides only partial strengthening of this part of the blade, since between the applied rollers the surface of the blade remains damaged by radial wear, and during operation of the thus restored blade, further radial wear continues already radially of the worn surface of the blade between the reinforcing rollers, which causes the possibility of blade breakage in the zone of its radial wear when the blade hits a stone or other solid

From the object with which the soil is littered. This leads to a reduction in the service life of the ploughshare restored in this way.

The object of the invention is a method of restoring and strengthening the front part of the blade in case of abrasion and radial wear, in which, by replacing the radially worn part of the blade, its strength is improved and the service life is extended.

The task is solved due to the fact that in the method of restoring and strengthening the front part of the plow blade with abrasion and radial wear, which includes the manufacture of an insert element from a steel plate covering the worn blade tip, removing the remains of this blade tip according to the dimensions of the manufactured insert element and welding it to the location of the plow tip of the manufactured insert element and the improvement of the working surface of the plow that has undergone radial wear, in accordance with the invention, determine the unacceptable wear of the plow tip and the radial wear of its nose part, and make an insert element that covers these two types of wear, make a cutout of the nose part of the plow by the cut of the manufactured insert element, which is welded along the entire cutout, and the working surface of the welded insert element is strengthened by soldering to it plates of high hardness from an alloy based on tungsten or other hard alloy metal, and restoration of the initial shape of the blade and its working edge is sharpened from the non-working side by an electrical contact method.

Thanks to this implementation of the method of restoration and strengthening of the front part of the plow blade during abrasion and its radial wear, after the restoration of the blade, its part, which is subject to radial wear, has the same thickness as the new blade, without traces of radial wear. In addition, the working part of the ploughshare surface, which is subject to radial wear, is strengthened by high-hardness plates soldered to it from an alloy based on tungsten or another hard alloy metal, and the restoration of the initial shape of the ploughshare and the sharpening of its working edge is carried out from the non-working part by an electrical contact method, which ensures an increase strength of the blade and increase in its service life after restoration.

An example of the implementation of the invention is explained by the drawings, where:

Fig. 1 - new ploughshare;

Fig. 2 - ploughshare with abrasion and radial wear;

Fig. C - plowshare with a cutout for placing an insert element to cover abrasion and radial wear;

Fig. 4 - restored ploughshare.

The method of restoration and strengthening of the front part of the plow blade in case of abrasion and radial wear is carried out as follows. Unacceptably significant wear and radial wear of the front part of the blade are determined, which must be restored. An insert element is cut from a steel plate with a thickness close to the thickness of the ploughshare, which would cover the parts of the ploughshare that are unacceptably worn by abrasion 1 and radial wear 2 (Fig. 2). After that, cut-out 3 is made on the manufactured insert element in the front part of the plowshare (Fig. 3). Then insert element 4 is placed in cut-out C (Fig. 4) and welded along the entire cut-out 3. After that, the working surface of insert element 4, which is exposed to radiation wear, strengthened by soldering to it plates of high hardness from an alloy based on tungsten or other hard alloy metal. Moreover, restoration of the initial shape of the new ploughshare after restoration and sharpening of its working edge is carried out from the non-working side by the electrical contact method.

Claims (2)

FORMULA OF THE INVENTION 1. The method of restoring and strengthening the front part of the plow blade with abrasion and radial wear, which includes the manufacture of an insert element from a steel plate that covers the worn blade toe, removing the remains of this blade toe according to the dimensions of the manufactured insert element and welding the manufactured insert element in its place and strengthening of its working surface that has undergone radial wear, which is characterized by the fact that the unacceptable abrasion of the tip of the blade and the radial wear of its nose part are determined and a new insert element is made that covers these two types of unacceptable wear, the nose part of the blade is cut according to the cut of the manufactured insert element , which is welded to the ploughshare along the entire cutout. 2. The method according to claim 1, which is characterized by the fact that the working surface of the welded insert element is strengthened by soldering to it plates of high hardness made of an alloy based on ZO tungsten or another hard alloy metal. C. The method according to claims 1, 2, which differs in that the restoration of the initial shape of the blade and the sharpening of its working edge are carried out from the non-working side by an electrical contact method. Fig. 1