SK500192010U1 - Tubular shaped metallic spacer - Google Patents

Abstract

Pipe shaped metal bunton for mining flexible arch lining, used by driving the long workings, is formed by an elongated body (1), which is flattened at both ends and at least one intermediate section (2) of flattening is bend out in the shape replicating profile of mine lining (5 ), flattening on both sides is equipped with at least one first fastening hole (4), the second fastening hole (4') for clamp (3), whereby the elongated body (1) is equipped in the flattened part or the whole length brace (6).

Description

Technical field

The technical solution relates to tubular shaped metal expanders for mine flexible arch reinforcements, used for driving long mining parts, for their reinforcement. The expander is designed to increase the stability of malleable arched reinforcements made of rolled trough profiles.

BACKGROUND OF THE INVENTION

At present, spacers made of steel, iron or its alloys are commonly used to join two adjacent steel reinforcement assemblies along the perimeter of a mining work. These spacers are generally made of elongated bodies of different cross-section and are provided with different fastening elements at their ends. They are fixed clips or holes, one at each end of the spreader. Another part of these spacers are conventional yokes or hooks for attaching to the profile of the flexible mine arch reinforcement and fastening nut. A common type is a rod-shaped spacer according to CZ 3879 U1, ie. an elongated hollow body which is flattened at its ends and provided with one fastening opening at each end. Another common version is a spacer according to CZ 5271 U1. The spacer consists of an elongated rod body with an internal cavity, flattened at its ends and provided with a round-shaped fastening hole on one side and two oval-shaped fastening holes on the other side. The disadvantage of these spacers is that due to the simple fixation at the ends of the spacers or the one-sided fixation, i. by attaching the flat part of the spreader to the front wall of the mine reinforcement profile, the necessary stability of the mine work is not ensured and a sufficient number of spacers must be fastened, which increases the cost and labor of producing the mine workings. A disadvantage of the circular shape of the mounting holes is the difficulty of mounting accuracy.

The essence of the technical solution

The above-mentioned drawbacks are largely eliminated by the tubular shaped metal spreader of the mining malleable arch reinforcement of the long mine parts, which is provided with at least one yoke or two fastening hooks for attachment to the mine arch reinforcement profile.

-2 according to a technical solution which consists of an elongated body, which is flattened at both ends and at least one central part of the flattening is bent into a shape copying the profile of the mining reinforcement, the flattening is provided on both sides with at least one first fixing hole; a second fastening hole for the yoke, wherein the elongate body is provided with a stiffening in the flattened part or along its entire length.

The distance between the first fastening openings and the second fastening openings of the tube spreader is greater than the width of the mine support profile.

The first fixing holes and / or the second fixing holes of the tubular spacer are oval.

The stretcher according to the invention has the advantage that it is suitable for any reinforcement of mining works. It enables to achieve the necessary stability and strength by using a reinforcement in an elongated tubular body.

Image overview

The technical solution will be explained in more detail by means of the drawings, where FIG. 1 is a side view of a tubular shaped metal spreader of a mine flexible arch reinforcement, and FIG. 2 shows a top view of a tubular shaped metal spreader of a mine flexible arch reinforcement.

Examples of technical solution

The tubular shaped metal spacer, which is provided with at least one yoke for attachment to the mine reinforcement profile, is formed by an elongated body 1 which is flattened at both ends and at least one central flattening part 2 is bent into a shape conforming to the mine reinforcement profile 5; provided on both sides with at least one first fixing hole 4 and a second fixing hole 4 'for the yoke 3, the elongate body 1 being provided with a stiffening 6 in the flattened part or along its entire length.

The distance between the first fastening holes 4 of the second fastening holes 4 'of the tube spreader is greater than the width of the profile of the mining reinforcement 5, for example for types of mining reinforcement TH

-329, ΤΗ 34, ΤΗ 36 and K 24.

The first fixing holes 4 and / or the second fixing holes M of the pipe spreader are oval.

Claims (3)

PROTECTION REQUIREMENTS A tubular shaped metal spreader having at least one yoke for attaching to a reinforcement profile of mining parts, characterized in that it is formed by an elongated body (1) which is flattened at both ends and at least one central flattening part (2) is the flattening is provided on both sides with at least one first fixing hole (4) with a second fixing hole (4 ') for the yoke (3), the elongate body (1) being provided in the flattened part or over the entire length of the reinforcement (6). Pipe spreader according to claim 1, characterized in that the distance between the first fastening holes (4) and the second fastening holes (4 ') is greater than the width of the profile of the mining reinforcement (5). Tubular spreader according to claims 1 and 2, characterized in that the first fixing holes (4) and / or the second fixing holes (4 ') are oval.