SU875086A1 - Power roof support - Google Patents

Description

I

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

The known mechanized lining, consisting of main and auxiliary sections, base beams, telescopic connections, shifting and steering jacks, designed for work in inclined holes x 1 |.

The disadvantage of this lining is. two types of sections, the complexity of the design, as well as the absence of elements that fix the position of the sections at different inclinations of the cleaning hole.

The closest in technical essence and the achieved result to the proposed is me-F isolated support, including sections containing overlaps with brackets, interconnected by a hinged shunt link and movement jacks, canopies and hydraulic posts 2.

A disadvantage of the known lining is the impossibility of directional movement along strike at different angles of inclination of the clearing line.

The purpose of the invention is to provide directional movement of the lining at various angles of inclination of the line of the clearing slab.

This goal is achieved in that each section is provided with a mechanism associated with an abutment to change the place of attachment of the jack of movement to the overlap.

Moreover, the mechanism for changing the place of fastening of the jack of movement to the overlap is made in the form of a longitudinal guide in the overlap, a protrusion on the bracket installed in a longitudinal guide with the possibility of reciprocating shifting, and a fixing screw fixed in the overlap with the possibility of interaction with the arm.

In addition, the mechanism for changing the place of 5 fastening of the jack for movement to the overlap is made in the form of a spacer installed between the arm and the movement jack and connected to the latter.

Claims (2)

Fig: 1 shows a mechanized lining with screw adjustment of the position of the brackets with respect to the overlaps, installed in the lava, which is ahead of the lower part, is a plan view; in fig. 2 - the same when advancing the upper part of the lava; in fig. 3 shows section A-A in FIG. 2; in fig. 4 is a view B in FIG. 3; in fig. 5 - mechanized roof support with an adjustment of the place of fastening of the jacks to the overlappings through spacers installed in the lava, which is ahead of the lower part, is a plan view; in fig. 6 - the same, when ahead of the upper lava suit. Mechanized lining consists of sections 1 containing overlaps 2 interconnected by a hinged tongue and groove link (not shown) and movement jacks 3. The overlaps are provided with brackets 4 designed to fasten the movement jacks 3. The brackets 4 are located in the front part of the ceiling on the sections of the first type and in the rear part on the sections of the second type. Sections of the first and second type are located along the side of the slab. The jacks are connected by 3 cylinders to the brackets of sections of the second type, and the rods to brackets of the sections of the first type. The back fences 5 are attached to the ceilings at the rear and the visors 6 at the front. Hydraulic posts 7 are installed under the ceilings. The sections are equipped with mechanisms for changing the place of fastening of the jack for movement to the ceiling. The mechanism for changing the place of attachment of the jack to the overlap can be made (Fig. 3 and 4) in the form of a protrusion 8 on the crown 9, a longitudinal guide 9 in the overlap and a fixing screw 10. The protrusion 8 is installed in a longitudinal guide with the possibility of reciprocating movement. The screw 10 is fixed in the ceiling and interacts with the bracket, made with a threaded hole. The mechanism for changing the place of fastening of the jack to the overlap can also be made in the form of a spacer 11 installed between the bracket 4 and the jack 3 and connected to the latter (Figures 5 and 6). For different inclinations of the clearing line 12, different sizes of spacers are used. At a certain inclination of the clearing line, appropriate adjustment is made to the position of the brackets 4 relative to the overlaps 2 by means of screws 10, or to install the appropriate size of the spacers I. In the initial position, the jacks 3 are shortened, section I are parallel-conveyor drift 13, ledges in the plane of the reservoir. After the next strip is dredged, the coal and the conveyor movements move the mechanized support. First, the hydraulic rails 7 are unloaded on the sections of the first type and the rods of the movement jacks 3 are extended. In this case, the sections of the second type perform the functions of the support. After moving the sections of the first type, 7 sections of the second type are discharged, unloading the hydraulic rails, and the latter are moved to the bottom. The loop of the advancement of the fastener ends with the thrust of the sections of the second type moved to the face. Claim 1. Mechanized lining, comprising sections containing overlaps with brackets, interconnected by an articulated tongue-and-groove connection and moving jacks, canopies and hydraulic legs, characterized in that, in order to ensure the directional movement of the lining at different angles of inclination of the clearing face , each section is provided with a mechanism for changing the place of fastening of the jack for movement to the overlap associated with the stop. 2. The fastener according to claim 1, characterized in that the mechanism for changing the place of fastening of the jack for movement to the overlap is made in the form of a longitudinal guide in the ceiling, a protrusion on a bracket mounted in the longitudinal guide with the possibility of reciprocating movement, and a fixing screw, fixed in the cover with the ability to interact with the bracket. 3. The fastener according to claim I, characterized in that the mechanism for changing the place of fastening of the jack of movement to the overlap is made in the form of a spacer installed between the bracket and the jack of movement and connected to the latter. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 273127, cl. E 21 D23 / 00, 1965. - 2. USSR author's certificate No. 605021, cl. E 21 D23 / 04, 1974 (prototype). /////////////////////// JH //////////// / Щ ///// f /////// lf777 / 7/7 /./ 7 // 7/77 FIG. : Fia ////////////////////// LA .five ./ 7 ± 6tfg5 / X