RU2002964C1 - Metal capping for supporting breakage face - Google Patents

Abstract

Usage: for fastening the mine workings of coal plants when mining coal with narrow gripping combines and plow installations complete with individual fastening racks. SUMMARY OF THE INVENTION The metal top includes a box-welded box frame, an adapter rigidly attached to the box frame at one end, and a latch mounted on the other end of the frame to hold the top when the fastening rack is installed underneath and in the working position. The latch is installed in the through hole of the frame and through holes or grooves of the adapter of the adjacent upper 3 sludge

Description

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The invention relates to mining, and in particular, to fastening the working faces of coal mines when mining coal with narrowly graded combines and plow installations complete with individual fastening racks.

An overlap is known to support the roof in treatment workings, containing grafts connected by a beam with a spacer wedge and brackets. Its disadvantage is the significant complexity of the design, the greater complexity of the operation during operation, due to the need to set and remove the connecting beams.

The closest in technical essence to the proposed technical solution is a metal hinged upper k including a beam having a fork at one end with a transverse through ellipse-shaped hole and a connecting pivotally attached link at the second end. The disadvantage of this top is the design complexity due to the presence of an articulated connecting link, forks and ellmp-like holes. In addition, during operation, it is necessary to install the connecting link along the axis of the beam, to rotate the top to 90 ° when installing it and when removing it.

The aim of the invention is to simplify the design and operation of the top. This is achieved by the fact that an adapter with holes and grooves is rigidly attached to the box frame at one end, and an adjacent upper lock is attached to the through transverse hole in the frame at the other end.

Fig. 1 shows a metal top for attaching a treatment face, a side view; figure 2 is the same, plan view; in Fig.Z - section aa in Fig.1.

The upper one consists of a metal box frame 1, for example, a two-tee special profile welded from two beams, at one end of which an adapter 2 is rigidly fixed with holes 3 and grooves 4, the second end of the box frame is open and serves to slide on the adapter

Claims (1)

The claims A METAL TOP FOR FIXING A CLEANING BOTTOM, comprising a box-frame welded from profiles with an adapter at one end and a transverse through hole at the other and a latch, characterized in that, in order to simplify the design, ensure linearity, stability and a contiguous upper. At the open end of the frame there is a transverse through hole 5 against which a captive latch 6 is attached. Four stops 7 are attached to the box frame to prevent the fastening rack from moving along the upper frame. The installation of the upper face 0 is as follows. The next attachable top to the open end is pushed onto the adapter 2 of the previously installed adjacent top and secured by a captive latch b into the groove of the adapter 4. The upper k is held by the latch until a fixing stand is installed under it. After preliminary back-up of the upper fastening column, the latch moves from the groove into the adapter hole 3, which allows the upper wall to take up position after the final expansion of the fastening column, according to the hypsometry of the formation roof, the adapter enters the box section freely and is an element that facilitates installation top, providing linearity and stability of the mounting frame, which includes 4-5 tops and 4-5 racks. After the roof is planted in the casing bottom, the stand is removed from under the upper row in the row, the latch is removed, the upper latch is lowered and transferred to the place of the new installation. The installation, fastening and removal of the top can be done by one operator without assistance, which allows to increase labor productivity. The invention allows to increase labor productivity during operation, as well as to ensure annual economic effect. (56) Copyright certificate of the USSR No. 335402, cl. E 21 D 17/02, 1969. USSR copyright certificate N3 466335, cl. E 21 D 17/04, 1972. USSR Copyright Certificate No. 767354, class. E 21 D 17/01, 1972. USSR copyright certificate N 141T495. class E 21 D 17/02, 1986. USSR copyright certificate No. 901549, class. E 21 D 17/04, 1980. After installation, the adapter is made with through holes and grooves and is fixed to the case rigidly, and the latch is attached opposite the transverse through hole of the case to hold the top when installing it in the through hole of the frame and through holes or grooves of the adapter of the adjacent top. I L J A-k {ZZ2K $ s phipZ