A method of manufacturing a solid insert and solid insert for the anti-skid spike

 

(57) Abstract:

The invention can be used in the tire industry to equip the treads of tires of vehicles to improve their grip. In the method of manufacturing a wear-resistant inserts for the anti-skid spike in shape for pressing asleep wolframtones mass press covered a lot for her seal, and perform subsequent sintering the compacted mass for the formation of the insertion of a given length. Part of the form for pressing fill wolframalpha mass to a depth less than the length of the insert. The remainder of the form for pressing fill an additional element or additional mass of material with a specific gravity lower than the specific weight wolframalpha mass, and provide a rigid connection wolframalpha mass with an additional element or additional mass in the form or outside of it. Wear-resistant insert for the anti-skid spike made in the form of a rod element of a given length and a given cross-section, having a working part. The latter is made long, the smaller the total length of the insert, and is made of wolframalpha mass. The remainder of the insert will the working side of the insert. The invention reduces the weight of the spike by reducing the weight of the insert and increases the operational reliability of studs. 2 S. and 9 C.p. f-crystals, 6 ill.

The invention relates to the tire industry and for the design of studs, which are equipped with the tyre tread vehicles to improve their adhesion to the supporting surface, characterized by a low coefficient of adhesion.

Set in cones lug tread tires studded represent a case in which its longitudinal axis is fixed wear-resistant insert, made from a carbide material. The insert protrudes from the housing by a certain amount so that when the interaction of the tyre surface in contact with the last entered only the paste, not the body, which usually runs from wearing material (steel, composite materials and so on).

The insert of cemented carbide material is a cylindrical or conical body (shaft) of a given length (height), which is due to the fact that consists of working parts subject to gradual wear and tear during operation of the thorn, and part of preal insert in the form of a rod accepts the load along the axis, but with more brittle, breaks down when significant lateral loads. Increasing the length of the insertion leads to its weakening perception Flexural loads.

A known method of manufacturing a wear-resistant inserts for the anti-skid spike, which includes filling in the form for pressing wolframalpha mass, compacting backfill mass for compaction and subsequent sintering the compacted mass for the formation of the insertion of a given length (see US, 3779299, B 60 C 11/16, publ. 18.12.73).

Known wear-resistant insert for the anti-skid spike representing installed in the housing of the anti-skid spike core element of a given length and a given cross-section, having a working portion partially protruding above the body of anti-skid spike (see US, 3779299, B 60 C 11/16, publ. 18.12.73).

The disadvantage of this method and made it wear-resistant inserts is that made of carbide material insert in the form of a rod accepts the load along the axis, but has increased fragility under lateral loads. At the same time from all inserts for the work of the anti-skid spike use only the working part. The remaining sum is the first part, in connection with the manifestation of such properties as fragility, does not provide reliable retention of the insert in the housing. When lateral or axial shock loads the insert may deteriorate.

In this regard, it is necessary to make material housing studs to hold the insert and exceptions transmitting bending loads. And when the shells made of composite materials it is necessary to increase the thickness of their walls. These circumstances significantly affect the weight gain of a thorn.

In addition, in the manufacture of such insert is increased consumption of expensive raw materials such as voltametry material.

The present invention is directed to solving technical tasks to perform wear-resistant inserts from a combination of working wear-resistant part and the remaining part of the lightweight material. Achievable technical result is to reduce the consumption of expensive raw materials and improve the operational reliability durability of studs.

This technical result in relation to the method is achieved in that in the method of manufacturing a wear-resistant insert for a thorn protivoskolzhenie the s for compaction and subsequent sintering the compacted mass for the formation of the insertion of a given length, when the filling of the form for pressing fill wolframalpha mass to a depth less than the length of the insert and the remainder of the form for pressing fill an additional element or the additional weight made of a material with a specific gravity lower than the specific weight wolframalpha mass, and during sintering provide a rigid connection wolframalpha mass with an additional element or additional weight.

Various combinations of backfill. So, when filling in the form for pressing, first install preformed an additional element representing the length of the insert, and then the shape for pressing fill wolframalpha mass. Possible reverse procedure.

Or form for pressing first fill the extra weight, and then it is filled wolframalpha mass. Possible reverse procedure.

The additional mass can be used as a material of a different composition, thermally connected with wolframalpha mass, or an additional element, which may be a molded part of the insert, made of a hundred who P CLASS="ptx2">

This technical result in relation to the device is achieved by the fact that in the wear-resistant insert for the anti-skid spike representing installed in the housing of the anti-skid spike core element of a given length and a given cross-section, having a working part is made with the length, the smaller the total length of the insert, while the working part is made of wolframalpha mass, and the rest of the insert is made of weight with a specific gravity lower than the specific weight of the material wolframalpha mass, and rigidly attached to the working part of the insert.

However, the remainder of the insert may be made of titanium carbide, steel, aluminum.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

Such construction is wear-resistant inserts can significantly reduce the consumption wolframalpha mass, increase the ability of the insert to absorb shock lateral and bending loads and to securely hold the insert in the case of a thorn.

The present invention is illustrated in concretisee given set of features required technical result.

In Fig. 1 shows a wear-resistant insert for the anti-skid spike, the first example embodiment;

in Fig. 2 - wear-resistant insert for the anti-skid spike, the second example embodiment;

in Fig. 3 is a thorn in the snow with the insert according to this invention;

in Fig. 4 is a first example of the placement of the components of the insert in the mold;

in Fig. 5 is a second example of the placement of the components of the insert in the mold;

in Fig. 6 is a third example of the placement of the components of the insert in the mold.

Wear-resistant insert 1 for the anti-skid spike is a core element of a given length and a given cross-section. The insert 1 has a working portion 2 (Fig. 1). The working part 2 is on its length L, the smaller the total length of the insert. The working portion 2 of the insertion is performed from wolframalpha mass, and the rest of part 3 insert made of weight with a specific gravity of a material of lower specific gravity material wolframalpha mass. The rest 3 are rigidly connected to the working part 2 insert, for example, by sintering the molded or otherwise. The rest of part 3 of the insert may be made of titanium carbide.

If the insert is formed in the press hostame. If working part insert molded separately and connect it with the rest occurs due to thermal heating and pressing the compression of the contacting surfaces, the outer surface of the insert at the junction of its parts is formed by a collar 4, which subsequently is used as a retainer insert when it's fixed in the housing 5 of the anti-skid spike (Fig. 3). In Fig. 3 presents an example of implementation of the anti-skid spike, the body of which may be made of composite materials (plastics, polymers, and so on). Securing the insert in such a case can be made heat-draft material. Small height of the working part of the insert is guaranteed to reduce the likelihood of a break this part of the insert, and the rest, not participating in the process of wear due to contact with the support surface to hold the insert in the housing. The insert, however, has a weight less than if it was made completely uniform from wolframalpha mass.

As the remaining part can be used molded workpiece made of steel or other material, to which is rigidly attached the working part of the insert of molded and sintered in the mold, for example, titanium carbide.

The essential condition is that the material of the remaining part acted as a lightweight material in relation to the material wolframalpha mass. In this case, as a criterion, one can consider the condition that the remainder of the insert is made of weight with a specific gravity lower than the specific weight of the material wolframalpha mass. These inserts will significantly reduce its weight and improve its reliability and durability by reducing the probability of destruction of the rest of the insert located in the housing of the anti-skid spike.

A method of manufacturing a wear-resistant insert 1 for the anti-skid spike involves filling in a form 6 for pressing wolframalpha mass 7, the pressing covered mass for compaction and subsequent sintering the compacted mass for the formation of the insertion of a given length or includes a separate manufacturing insertion of shorter length and the rest of the other material and their subsequent connection by thermal heating and compression outside of the form.

When the filling of the form 6 for pressing fill wolframalpha mass 7 to a depth less than the length of the Soi 9, made of so-called lightweight material with a specific gravity lower than the specific weight wolframalpha mass.

Then the components of the insert is pressed (seal) in the mold and carry out the sintering of the mass.

When the sintering is carried out rigid connection wolframalpha mass with an additional element of 8 or more by weight of 9.

According to this method, you can use several methods of manufacturing a combined (composite) insert. For example, when filling the form 6 for pressing first fill wolframalpha mass 7, and then it is filled with the additional element of 8 or more by weight of 9 (Fig. 4). Or when filling the form 6 for pressing first fill the extra weight 9, and then it is filled wolframalpha weight 7 (Fig. 5).

Or when filling in form 6 for pressing first install preformed additional element 8, which represents the length of the insert, and then the shape for pressing fill wolframalpha mass 7.

As an additional mass may be used titanium carbide, cermet, ceramics, and more elela. For additional mass or as an additional element using mass and elements of materials during sintering interact with components wolframalpha mass in order to provide a rigid connection of the working part of the insert with the rest of the insert.

The present invention is industrially applicable as it is based on well-known technology of sintered wear-resistant inserts for of studs and does not require additional equipment and special equipment, except those used in the production of the manufacture of thorns.

The present invention reduces the weight of the spike by reducing the weight of the insert and to increase the operational reliability of studs.

1. A method of manufacturing a wear-resistant inserts for the anti-skid spike, which in shape for pressing asleep wolframtones mass press covered a lot for her seal, and perform subsequent sintering the compacted mass for the formation of the insertion of a given length, wherein the portion of the form for pressing fill wolframalpha mass to a depth less than the length of the insert, and the rest fo the com, lower specific weight wolframalpha mass, and provide a rigid connection wolframalpha mass with an additional element or additional mass in the form or outside of it.

2. The method according to p. 1, characterized in that the form for pressing first install preformed additional element, then the form is filled wolframalpha mass.

3. The method according to p. 1, characterized in that the form for pressing first fill the extra weight, and then the form is filled wolframalpha mass.

4. The method according to p. 1, characterized in that the additional mass is used, the titanium carbide.

5. The method according to p. 1, characterized in that the additional element is a molded part of the insert, made of steel or aluminum.

6. Wear-resistant insert for the anti-skid spike, made in the form of a rod element of a given length and a given cross-section, having a working portion, wherein the working part is made long, the smaller the total length of the insert, and is made of wolframalpha mass, and the rest of the insert is made of weight with a specific gravity lower portion is p. 6, characterized in that the remainder of the insert is made of titanium carbide.

8. Insert under item 6, characterized in that the remainder of the insert is made of steel.

9. Insert under item 6, characterized in that the remainder of the insert is made of aluminum.

10. Insert under item 6, characterized in that the remainder of the insert is made of metal.

11. Insert under item 6, characterized in that the remainder of the insert is made of ceramic.

 

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