SU898091A1 - Power roof support - Google Patents

Description

one

FIELD OF THE INVENTION The invention relates to mining, specifically to mechanized crepes for cleansing faces.

A well-known section of mine powered roof support, comprising a base in which a shoe is placed, top to, resting through a hydro-rack on the shoe, a fence, a vertical telescopic frame with elastic guides and a hydraulic jack of movement f I.

A disadvantage of the known lining section is the lack of means that prevent overlapping of the overlap during unloading of the section.

The closest to the invention in technical essence and the achieved result is mechanized lining, including base beams, lower and upper longitudinal guides, connected by spacer hydraulic cylinders, mounted between said guide sections of the lining, each of which contains a base, overlap, hydroracks, fencing and hydraulic jacks of movement 1.2 J.

The disadvantage of this mechanized support is the presence of gaps between the upper longitudinal guides and overlaps, which leads to the penetration of the collapsed roof rocks into the lining and the reduction of the stability of the sections.

The purpose of the invention is to increase the ycToiftness of the sections and reduce intersectional gaps.

This goal is achieved by the fact that the sections overlap is made with lateral longitudinal grooves symmetrically located relative to

the longitudinal axis of the floors and open from adjacent sections, and

the longitudinal guides are installed in the lateral longitudinal grooves.

Claims (2)

FIG. 1 shows a mechanized lining, side view; in fig. 2 38 section A-A in FIG. one; in fig. 3 view B in FIG. 1. Mechanized lining consists of a base beam 1, lower 2 and upper 3 longitudinal guides connected by spacer hydraulic cylinders 4, upper beams 5 connecting the spacer hydraulic cylinders and placed between the longitudinal guides 2 and 3 of the lining sections. The latter contain overlaps 6 with lateral longitudinal grooves 7 and 8, bases 9, which are pushed apart between the roof and the soil by hydraulics 10, fences consisting of the upper 11 and lower 12 parts connected hinged to each other, as well as with overlaps and bases movement jacks 13 and 14. The lateral longitudinal grooves are located symmetrically relative to the longitudinal axis of the overlap and. made open by the adjacent sections. The jacks 13 are located under the ceilings 6, are connected at one end with their bulkhead, and the other with the upper beams 5. Domkra1 14 connect the base 9 of the lining section with the lower beams 15., fastening the hem ends of the lower longitudinal guides 2. At the bottom by dropping the half-sleeves 7, the upper longitudinal guides 3 are placed, and the half-grooves 8 are covered with sliding spring-loaded edges 16. After the passage of the excavation machine, the strut is removed from the hydraulic posts 10, and the jacks 13 and 14 of the securing section are secured to the base beam I. The controversial hydraulic cylinders 4 can be unloaded or fed by the pressure of the active overpressure, and the overlays 6 move along the upper guides 3j based on the last notches 7. Following the movement of all lining sections, the base beam is moved, jacks 13 and 14 The base beam 1 with the longitudinal guides 2 and 3 and the spacer cylinders 4 is fed to the bottom. At the time of shifting, overlap the 6 and the base 9 of the section, the support is unstressed between the lateral rocks with the hydraulic rails 10 with the working resistance and the longitudinal guides 2 and 3 - the spacer cylinders 4 with active overpressure, which value is considerably less than the value of operating resistance. At the same time, the upper longitudinal guides 3 slides in the slots 7 of the overlap 6, simultaneously contacting the sliding spring-loaded edges of 16 adjacent sections. The symmetrical arrangement of the slots 7 and 8 of the floors 6 makes it possible to use the proposed mechanized lining in both the right and left bottom. Thus, these features of the proposed mechanized roof support allow controlling the specified direction of movement of sections during their movement and keep the latter from tilting, ensure continuous contact of the floors with the roof, reduce the intersectional gaps and improve the condition of the roof over the movable sections. Claims of the invention: Mechanized lining, comprising base beams, lower and upper longitudinal guides, connected by pacnopiaiMH hydraulic cylinders, mounted between the said guide sections of the support, each containing a base, an overlap, hydraulic gantry rails, fencing and supporting hydraulic jacks, a core, an overlapping core, a wall, an overlap, hydraulic rails, a fence, and a hydraulic fastener that has a wall, an overlap, a wall, overlapping, hydraulic rails, a wall covering, a wall covering, a wall, an overlap, a wall, an overlap, a wall covering, hydraulic rails, a wall covering, a wall covering, a frame, a wall covering, a frame, a wall, a wall covering, a wall, an overlap, a frame, an overlap. in order to increase the stability of the с-sections and reduce the intersectional gaps, the sections overlap are made with lateral longitudinal grooves symmetrically located about the longitudinal axis they are open from the side of adjacent sections, and the longitudinal guides are installed in the side longitudinal grooves. Sources of information taken into account during the examination 1. USSR author's certificate №470634, cl. E 21 D 23/04, 1973. 2. USSR author's certificate No. 529292, cl. E 21 D 23/00, 1974 (prototype), tJl.l