SU1286783A1 - Power support unit - Google Patents

Abstract

The invention relates to equipment for fixing cleaning faces for underground excavation of minerals. The goal is to improve the maintenance of the roof in the clearing face by eliminating spillage of the roof rocks into the open space between the visor and the overlap, stabilizing the spacer characteristic and the bearing capacity of the lining section when the power increases. For this, the inner beam (XB) 5 of the overlap is fixed by means of an axis on the base. The outer beam (NOT) 3 covers WB 5 with the ability to move along it. WB 5 is hinged by means of an axis fixed on the bracket 12 of the base. The additional connection of the bracket 12 of the base with the overlap is made in the form of rollers 9. Their axes 10 are rigidly fixed on the bracket 12, and the clips 11 are installed in the guiding figure groove 8 located on the inner sides of the side sheets 7 NB 3. When thrusting the hydraulic post and lifting the NB 3 due to the interaction of the rollers 9 with the guide groove 8 of the NB 3 moves in the side of the bottom along the EB 5. When the hydraulic rack is reduced and the lowering of the NB 3, the overlap together with the visor will move away from the bottom. At the same time, the distance between the visor and the bottom and the angle of inclination of the hydroresistance towards the bottom is ensured due to the interaction of the rollers 9 with the guide groove 8. 3 sludge. (L

Description

112

The invention relates to mining, in particular, to mechanized fortifications for underground mining of minerals by clearing.

The purpose of the invention is to improve the maintenance of an unstable roof in the clearing bottom by eliminating spilling roof rocks into the open space between the visor and the overlap, stabilizing the distance characteristics and bearing capacity of the lining section when changing the output power, as well as simplifying the design and increase of reliability of work.

Figure 1 shows the lining section, - 5 and the angle of inclination of the hydraulic post 2 in side view; FIG. 2 shows a section A-A on a well, at the expense of a similar interaction of FIG. 1; on fig.Z - section bb in figure 2. The modular guide groove 8 of the mechanized roof support section consists of the base 1, hydraulic posts 2, the outer beam 3 overlapping the box-shaped 20-leveling roller, and the structure, which is articulated due to the partial coincidence of the angle of the visor 4, will be reduced. the lines of action of the hydrostatic force from the ceiling, like a pencil case, embraces the internal (support) beam 5, s

25

9. In addition, the forces arising from the interaction of the pair in the direction of the extension of the ceiling.

the ability to move along it. The support beam 5 is hinged, with the help of the axis 6, fixed to the bracket of the base 1. The side sheets 7 of the outer beam 3 are provided on the inside with the formula of the invention

The mechanized lining section, which includes hydraulic legs, is hingedly attached to the base and is stretched rigidly connected with them to a south-facing overlap consisting of the outer ones (Fig. 2 and 3). In the shaped directional and inner beams, the hinged groove 8 is interconnected with rollers 9, each of which are composed of an axis 10

with the outer ring 11, which can 35 in order to improve the support of the axle 10. The 10 axis of the roller 9 of the unstable roof is rigidly mounted on the base bracket 12, 1.

Section mechanized lining works as follows.

Depending on the reservoir capacity to be removed under the action of a hydraulic post 2, the beam 3 is overlapped, rotated together with the supporting bass 5, fixed on the base 1 of the axis 6. At 45, and the external beam is made with the prop direction of the hydraulic post 2 and the lifting guide groove

attached to the base bracket and additionally associated with the latter, characterized by

. Eliminating spillage of roof rocks into the open space between the visor and the overlap j stabilizing the spacing characteristic and the bearing capacity of the lining section while changing the output power and simplifying the design, an internal beam is fixed on the base bracket along the support beam 5, in accordance with the chosen profile of the guide groove 8.

The profile of the guide groove 8 is selected in such a way that, in the range of the set extension of the section, the lining, the distance between the visor 4 and the face, as well as the angle of inclination of the hydrorack 2 towards the bottom, remain constant. During the contraction of hydro- i. Stand 2 and lowering the beam 3 overlap it together with the visor 4 moves away from the bottom, maintaining a constant distance between the peak 4 and the bottom

- the driving roller will be reduced due to the partial coincidence of the angle of the line of action of the force of hydroresistance with

9. In addition, the forces arising from the interaction of the guide-roller pair will be reduced due to the partial coincidence of the angle of the line of action of the hydroresistance force

the direction of extension of the ceiling.

Claims (1)

Invention Formula The section of mechanized support, including hydraulic legs, hingedly attached to the base and sliding cover consisting of external and internal beams, hinged attached to the base bracket and additionally associated with the latter, characterized by in order to improve the maintenance of an unstable roof due to ty, and the outer beam is made with shaped guide groove, with eliminating spillage of roof rocks into the open space between the visor and the overlap; stabilizing the spacing characteristic and the bearing capacity of the lining section while changing the output power and simplifying the design, an internal beam is fixed on the base bracket from the intersection of the guide groove 8 located on the inner sides of the side sheets 7 of the overlap beam 3 with the rollers 9 mounted on the base bracket 12, the overlap beam 3 moves towards the bottom This additional connection of the base bracket with overlapping is made in the form of rollers whose axes are rigidly fixed on the base bracket, and the clips are mounted in the figured groove of the external beam with the possibility of movement. P / V / /// /// /// ///; X // / Phage. one 35 III / 7 ///// Y ///// /// /// y yy // y ////////////////////. 8 Phage.Z