SU607046A1 - Powered support section roof - Google Patents

Description

one

The invention relates to the mining industry, in particular to mechanized fasteners operating predominantly in particularly thin formations.

The overlap of mechanized lining is well-known, consisting of rigid nastoyechny supports, connected by spring "connections of the arched form and spring console part in the working area of the excavation machine. The ends of the springs are rigidly secured, in the grooves onopLlJ ,.

The disadvantage of such an overlap is the reduced carrying capacity of the slips both in the inter-rack zone and in the work zone of the outgoing car due to the small longitudinal dimensions of the post-rack supports.

The overlapping of the mechanized roof support section is well known, which contains a cantilever part, rigid superstructure supports with longitudinal stiffening ribs, and spring connections of these supports located between the stiffening ribs 2.

The vertical gaps in the grooves of the stiffeners allow the springs to flex freely within the required limits.

This overlap is the most olieKIM to the invention by technical essence and the achieved result.

Its disadvantage is the insufficient carrying capacity of the overlap, the supports do not have a fixation of the position of the springs in the transverse plane.

In order to increase the carrying capacity in the proposed overlap: stiffening ribs are made with consoles to overlap the junction zone of the superstructure supports, while the surfaces of the cantilevers on the side of interaction with the supports are curvilinear.

FIG. 1 shows the proposed overlap with a cut in the area of the springs; in fig. 2 - plan overlap; in fig. 3 - the same, bottom view in the inter-rack area; in fig. 4A-A in FIG. 3; in fig. 5 — node 1 in FIG. four..

The overlap of the mechanized roof support section consists of the cantilever part 1, rigid superstructural supports 2 and 3 with longitudinal stiffening ribs 4 | between which there are 5 springs,

The stiffening ribs are made with the console of the perpergia of the zone of the junction of the superstructure supports. The surfaces of the consoles, from the side of the interaction with the supports, are made curvilinear.

The overmouth supports 2 and 3 are connected by springs 5 of arched shape with lugs 6 at the ends, which by means of pins 7 prevent disconnection of the supports. Support 2 is pivotally connected to the console part 1, which has slots for installing packages of springs 8

Supports 2 and 3 at their inner ends have sockets 9 for installing resC () 10 packages, which, like the springs 5, have an arched shape. Longitudinal ribs 4 with protruding rounded ends mutually overlap the interface of the supports 2 and 3, excluding the possibility of mixing the supports relative to each other up or down, but they allow the supports to rotate along the butt-line due to the rounding of the ribs and the same 5 m the occurrence of loads both on the cantilever part of the ceiling and in the inter-rack space.

When the springs 5 and 10 are in operation, due to the fact that they are located between the longitudinal stiffening ribs 4, the possibility of mixing of the supports is avoided in the event of lateral loads at the moment of interaction with the roof of the formation.

Around: 1g at the ends of the edge, the kgg plays the role of a lock and hinge.

Such a connection of supports with a minimum structural height in the zone of their joint excludes

disengagement of the supports when turning one is oddly different in the vertical plane due to protruding rounded edges mutually overlapping the joint zone, and when these supports are mixed in the horizontal plane due to spring connections closed by cells, these edges form.

Thanks to the use of a spring connection with full overlapping of its rigid supports, the carrying capacity of the overlap is increased both on the cantilever part due to the extension of the supports and in the inter-rack space due to the interaction of these supports and the operation of the spring connection.

Claims (2)

Invention Formula The overlap of the mechanized roof support section, which contains a cantilever part, rigid superstructure supports with longitudinal stiffening ribs, springs of these supports, located between stiffening ribs, which are due to the fact that, in order to increase its carrying capacity, stiffeners are reinforced with brackets for overlap the area of the junction of the superstructure supports, while the surfaces of the consoles are curved on the side of the interaction with the supports . Sources of information taken into account in the examination: 1, Pat1; it France No. 1611459, cl. E 21 D 23/00, 1968. 2. Author's certificate of the USSR L 283143, cl, H 21 D 23 / OO, 1969. GG GT-TT 4-1H - F-1 F- - -IP jjLJuuI o yy .Jl  Y | GT | one I HI III III III t-up II l | II it I and I I f -4- -; t li ii Ill ii I, III --- Itjiji || G - 4 ,, II I II I ill | i | l lil Jll | "N ..l1 I III I l 1 g I I II h | l-l- | i-h i i 1 l l - H-lf-t- H4fI IMM i .. . five