RU202376U1 - GUIDE SHOE - Google Patents

Abstract

Field of technology: mining engineering, can be used in niche-cutting complexes, shearers. The essence of the technical solution: in a guide shoe, which contains at least a base wall, an upper shelf and a lower shelf, the guide surfaces of which are covered with replaceable wear-resistant inserts, in accordance with The claimed technical solution proposes wear-resistant inserts to be made in the form of separate plates, respectively conjugated with the guide surface of the base wall, with the guide surface of the upper shelf and with the guide surface of the lower shelf, while each insert on the mating guide surface is fixed with at least one joint -slot "and at least one threaded connection. Technical result: ensuring ease of manufacture and ease of installation / dismantling of wear-resistant inserts. Consumer properties: improved maintainability of the guide shoe, the possibility of using a repair fund with minimal revision of the design. 2 c.p. f-ly, 5 dwg

Description

Technology area

The utility model relates to mining engineering, can be used in niche-cutting complexes, shearers.

Prior art

A guide shoe for a roller-type harvester and wear-resistant inserts for guide shoes is known from the prior art, comprising at least one base wall containing a guide protrusion on the side of the base wall for engaging under a rack drive of a rack drive mechanism, and comprising a guide surface for gearing with a rack and pinion drive, while the guide protrusion and the guide surface are made on wear-resistant inserts that are stationary relative to the guide shoe and are attached in such a way that it is possible to replace and, at the same time, the wear-resistant inserts are located in the receivers so that they can be removed from the bottom [1].

The disadvantages of this guide shoe include the fact that the proposed wear-resistant inserts have a complex and bulky design.

A task

The proposed technical solution is based on the task: to create a simpler design of replaceable wear-resistant inserts of the guide shoe.

As a result of solving the problem, a technical result can be obtained, which consists in ensuring the simplicity of manufacture and ease of installation / dismantling of wear-resistant inserts. Achievement of the technical result will provide consumer properties: improved maintainability of the guide shoe, the ability to use a repair fund with minimal design modifications.

Disclosure of a technical solution

In an already known guide shoe containing at least a base wall (1), an upper shelf (2) and a lower shelf (3), the guide surfaces (1a, 2a, 3a) of which are closed with replaceable wear-resistant inserts, in accordance with the claimed technical solution it is proposed to make wear-resistant inserts in the form of separate plates (6, 8, 9), respectively, conjugated with the guide surface (1a) of the base wall (1), with the guide surface (2a) of the upper shelf (2) and with the guide surface (3a) of the lower shelf ( 3), while fixing each insert with at least one tongue-groove connection (4) and at least one threaded connection (10).

In addition, it is proposed:

fixing, with at least one threaded joint (10), the plate (8) on the guide surface (1a) of the base wall (1) and the plate (6) on the guide surface (2a) of the upper shelf (2) from the side of the plates themselves, and fix the plate (9) on the guide surface (3a) of the lower shelf (3) from the side of the lower shelf (3);

fix the plate (6) of the upper shelf (2) against the plate (8) of the base wall (1) with the key (7).

The causal relationship between the newly introduced essential features of the formula and the claimed technical result is explained as follows.

The proposed guide shoe is optimal in design for recessed cutting systems that operate at small cutting lengths, about 6 meters. Wear-resistant inserts in the form of separate plates are easy and inexpensive to manufacture from wear-resistant material, and the tongue-groove and threaded connection provide convenience and ease of mounting / dismounting of wear-resistant inserts.

Thus, a new set of essential features makes it possible to achieve the claimed technical result: ensuring the simplicity of manufacture and ease of installation / dismantling of wear-resistant inserts, and provide consumer properties: improving the maintainability of the guide shoe, the possibility of using a repair fund with minimal structural modifications.

The technical solution is illustrated by an example, the implementation of which is not the only possible one, but clearly demonstrates the possibility of achieving the claimed technical result with the proposed new set of essential features.

Brief Description of Drawings

The essence of the technical solution is presented in the drawings, where:

fig. 1 - recessed cutting complex (side view) with a guide beam (5) and a guide shoe;

fig. 2 is a view directly on the guide shoe with a local cut along the fixation unit of the key (7) additionally introduced into the structure;

fig. 3 is a side view of the guide shoe of FIG. 2 with a local cut along the threaded connections for fixing the plate (8) on the guide surface (1a) of the base wall (1), the plate (6) on the guide surface (2a) of the upper shelf (2) and the plate (9) on the guide surface (3a) bottom shelf (3);

fig. 4 is a local section of FIG. 2 along the tongue-groove connections (4) for each of the plates (6, 8, 9);

fig. 5 is a section through the fixing unit of FIG. 2 according to an additionally introduced key (7):

1 - base wall;

2 - top shelf;

3 - bottom shelf;

1a - guiding surface;

2a - guiding surface;

3a - guiding surface;

4 - thorn-groove connection;

5 - guide beam;

6 - plate;

7 - key;

8 - plate;

9 - plate;

10 - threaded connection.

Industrial applicability

The implementation of the technical solution is shown in examples (Fig. 1-5).

The inventive guide shoe is used in a recessed cutting complex and is optimal for this type of machine, although it can also be used for shearers. The guide shoe contains at least a base wall (1), an upper shelf (2) and a lower shelf (3). The guiding surface (1a) of the base wall (1), the guiding surface (2a) of the upper shelf (2) and the guiding surface (3a) of the lower shelf (3) are covered with replaceable wear-resistant inserts, which are proposed to be made in the form of separate plates (6, 8, 9 ) respectively conjugated with the guiding surface (1a) of the base wall (1), with the guiding surface (2a) of the upper shelf (2), and with the guiding surface (3a) of the lower shelf (3), The immobility of the former relative to the latter is ensured at least one tongue-and-groove connection (4) and at least one threaded connection (10) for each pair. The tongue-and-groove connection (4) in the example is made with a pin.

For ease of installation / dismantling, the plate (8) on the guide surface (1a) of the base wall (1) and the plate (6) on the guide surface (2a) of the upper shelf (2) are fixed by threaded connections (10) from the side of the plates themselves, and fixation plates (9) on the guide surface (3a) of the lower shelf (3) are carried out from the side of the lower shelf (3). The specific number of threaded connections (10) for fixing each plate (6, 8, 9) is selected structurally depending on the operating conditions and the length of the guide shoe.

Replacing the plates is carried out as follows. The frame of the recess cutting machine together with the guide shoe is lifted up from the guide beam (5), the guide shoe is disconnected and the plates are replaced. The pins are installed in the plates (6, 8, 9), then the plate (6) is alternately mated according to the thorn-groove connection (4) on the guide surface (2a) of the upper shelf (2), the plate (9) is mated by the thorn -slot "(4) on the guide surface (3a) of the lower shelf (3), then install the plate (8) at the tongue-groove connection (4) on the guide surface (1a) of the base wall (1). Then each plate (6, 8, 9) is fixed with at least one threaded connection (10). In the example there are several threaded connections for each plate (6, 8, 9). The quantity and diameter are determined according to the working conditions and the length of the guide shoe.

The plate (6) of the upper shelf (2) for secure attachment is additionally proposed to be fixed relative to the plate (8) of the base wall (1) with a key (7).

For the skilled person, some modifications of the guide shoe follow from the previous description and fall within the scope of protection of the appended claims.

Sources of information:

1. Patent US 8,276,991 B2, publ. October 2, 2012

Claims (3)

1. A guide shoe containing at least a base wall, an upper shelf and a lower shelf, the guide surfaces of which are closed by replaceable wear-resistant inserts, characterized in that the wear-resistant inserts are made in the form of separate plates, respectively, mated with the guide surface of the base wall, with the guide surface of the upper shelf and with the guiding surface of the lower shelf, with each insert on the mating guiding surface fixed by at least one tongue-groove connection and at least one threaded connection. 2. A guide shoe according to claim 1, characterized in that at least one threaded connection of the plate on the guide surface of the base wall and the plate on the guide surface of the upper shelf is carried out from the side of the plates themselves, and the plate is fixed on the guide surface of the lower shelf from the side of the bottom shelf. 3. A guide shoe according to claim 1 or 2, characterized in that the plate of the upper flange is additionally fixed relative to the base wall by a key.

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