SU1504352A1 - Niche-excavating unit - Google Patents

Abstract

The invention relates to underground coal mining and can be used when mounting niches for shield units. The goal is to increase the reliability of the unit by reducing the outburst risk and improving the loading capacity. A niche unit consists of linear 1, end 2 and lower 3 sections / C / lining, a closed traction chain with incisal carriages 4 moving along the base beam / BB / 5. The latter has an L-shaped in plan, radially curved around lower end C 3 and associated with telescopic arms with the possibility of relative movement of hydraulic jacks / HD / 10. Some ends of HD 10 are fixed on BB 5, and others on telescopic levers. In order to provide installation of shield shield support, following the movement of the niche assembly of the unit, it has an expansion shield C 11 with a telescopic guard 12 on its longitudinal and end sides. At the same time, C 11 is connected by a hinge 13 to the lower end of the upper end C 2 support. On the upper end of the C 2 installed supporting device 16 with bellows. After the stripping of the coal strip by the incisal carriages 4 of the conveyor belt, sectional movement and linear strut of section C are made. Then end C is jointly moved together with spacer shielding of C. 11. After this, the next support is mounted. 2 Il.

Description

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In plan, it is L-shaped, bent radially around the lower end C 3 and associated with telescopic arms with the possibility of relatively hydraulic movement with hydraulic jacks (HD) 10. Some ends of HD 10 are fixed on BB 5 and others on telescopic levers. In order to provide installation of shield shield support, following the movement of the niche assembly of the unit, it has an expansion shield C 11 with a telescopic guard 12 on its longitudinal and end sides. Wherein

C 11 is connected by a hinge 13 to the scoop side of the upper end C 2 lining. At the upper end C 2, a supporting device 16 with pneumatic cylinders is installed. After removing the coal strip with the incisal carriages 4 of the conveyor belt, sectional shifting and linear C 1 spreading are carried out. Then, the end C is simultaneously moved along with the spacer-guarding C 11. After that, the next C support is mounted. 2 Il.

The invention relates to mining, namely to the underground mining of coal, and can be used when conducting mounting niches for shield units.

The aim of the invention is to improve the reliability of the unit by reducing the out-of-danger and improving the loading capacity.

FIG. 1 shows a niche umachka unit, a general view; FIG. 2 is a section A-A in FIG. one.

A niche block assembly consists of linear 1 and end upper 2 and lower 3 lining sections of a closed traction chain with incisor carriages 4, alternating along sectional base beam 5 connected to lining sections by telescopic arms 6, swing jacks 7 and 8 feeds. The base beam 5 is L-shaped, bent radially around the lower end section and provided on the sides with two pairs of curvilinear directions south of their 9 along which the carriages 4 move. The base beam is connected with telescopic levers with the possibility of relative movement using a hydraulic jack 10 longitudinal movement. To ensure the installation of shield support sections of the cleaning unit following the movement of the niche assembly unit, it is equipped with an expansion-partition section 11c with a telescopic fence 12 along its longitudinal and end sides connected by a hinge 13 with an upper end section 2 of the assembly support, the second end through supporting Lisi 14 she contact5

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It runs with the extreme sections 15 of the mounted shield support of the cleaning unit with the possibility of longitudinal movement relative to these sections. The supporting device 16 with pneumatic cylinders 17 is mounted on the upper end section 2.

The expansion-support section of the support, moving along the formation along the strike along with the mechanized support of the niche assembly unit, maintains the lateral rocks and protects the installation site of the next support section.

The unit works as follows.

Claims (1)

After the coal strip is dredged by the coal strip, section-by-section movement and spreading of the linear sections 1 of the lining are performed, and then simultaneous movement of the end sections together with the distance-fencing section 11, which at the same time slides along the previously mounted sections of the cleaning unit. After this, the next section of the lining unit of the cleaning unit is installed. Retention of rocks from the side of the side of which is provided by a telescopic fence- igM 12 and a supporting device 16. Formula A niche unit, including linear, upper and lower end sections of the support, connected to the base beam by telescopic levers, feed and swing jacks, closed in a vertical plane, with cutter carriages mounted on the base beam, driving and bypass heads, mounted on the ends of the base beam, which is characterized by the fact that, in order to increase the reliability of its operation by reducing the outburst hazard and improving the loading capacity, the beam is complete, in terms of an L-shaped shape, bent along the radius the circle of the lower end section of the support and associated with telescopic levers with the possibility of a relative variable ////////////// /// //// /// /// /// // // // / /// / U / /// /// //////////// ///////// /// //} //////////// / Y // 7 / /// ///////// // ////// //////////////////////// b7 By means of hydrojacks of longitudinal movement, fixed by one ends on the base beam, and by others - on telescopic levers, while it is equipped with a spacer-shielding section with a telescopic fence on its longitudinal and face sides, hinged to the top end section of the lining, and supporting device with air bellows mounted on the upper end section K1) of EPI. Fi9.1