SU1384746A1 - Coal plough unit - Google Patents

Abstract

The invention relates to a deserted recess in the clearing faces of very thin and thin layers. The goal is to increase work efficiency by expanding the range of application in terms of reservoir capacity, formation and removal of workers from the clearing site. The plow complex includes an executive body made in the form of several plows, a conveyor 8 with a pump, with its chain 9 and folding scrapers 10

Description

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and sets of mechanized roof sections last include sections 13, 14, consisting of racks, and a movement mechanism, made in the form of a screw jack (PD) 17. The rotation of HP 17 is carried out from the stars 20 fixed on it, receiving rotation from closed traction chains 21, 22 and their drives 23, 24, the invention relates to the mining industry, namely to a deserted excavation in the clearing faces of very thin and thin coal seams with a dip angle from 0 to 90 ° when the roof is completely collapsed or smoothly deflected, in particular and layers with hard coal and weak, wavy soil.

The aim of the invention is to increase work efficiency by extending the range of application of the reservoir power and the withdrawal of workers from the refinery.

FIG. Figure 1 shows a strugovish complex in a clearing face, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. 2; in fig. 4 shows a section BB in FIG. one; in fig. 5 is a view of B in FIG. one.

The plow complex consists of the executive body 1, which serves for coal blasting and driven back and forth along the clearing face of the working 2 and idle 3 branches of the traction chain from the drive station 4 through the tension station 5 located on the transport 6 and ventilation 7 workings, respectively.

The conveyor 8 is made single-lobe with a swinging chain 9 and folding scrapers 10 serving to transport the broken coal to the trolleys 11 or to the drift conveyor. The swinging chain 9 with folding scrapers receives swings from the actuators 12.

The sets of mechanized lining sections include sections 13 and 14. The sections of the sets are interconnected by shping pans 15 with detachable shafts 16, whereby the distance between the sets of sections is adjusted depending on the operating conditions.

Sections 13 and 14 are interconnected by a slide jack mechanism 17 and a nut 18 welded to the bed of section 13. The screw jack 17 rotates freely in brackets 19 welded to the bed section 14. Rotation of the screw fastened on the tables 25 drive and tension 4, 5. When sections 14 are open between the roof and the ground, then due to the rotation of the VD 17, the closed traction chains 21 and 22 with the grippers are moved from the bottom of section 13 and the conveyor 8, which presses the actuator 1 to the face. 2 hp f-ly, 5 ill.

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The crate 17 is carried out from the stars 20 mounted on it, which receive rotation from the closed traction chains 21 and 22 and their drives, 23 and 24, mounted on the tables 25, driving 4, and tensioning 5 stations, respectively. Tables 25 are moved in fixed frames 26 by 27 jacks 28.

The sections of the mechanized lining sets serve to fix the clearing face, and the jacks 17 to move the sections to the bottom relative to each other. Moreover, when sections 14 are unraveled between the roof and the soil, due to the rotation of the screws 17, the closed traction points 5 and 21 and 22 nuts 18 are moved to the bottom of section 13 and the conveyor 8, and the latter presses the actuator 1 to the face.

Sections 13 and 14 consist of racks 29 of the type OKU (Fig. 2), the mass of the sliding parts 30 of which is balanced by the springs 31. The sliding parts 30 pushed by the springs 31 to the roof follow the unevenness of the roof and are located during the movement of the sections on the face under roofing

Racks 29 are hingedly framed in bed by bed 32, and on the roof by top 33. For stability of the tops 33 on the sliding parts 30 of the racks 29, and also to support the consoles of the top 33, there are spring springs 34 attached at one end to the body of the uprights (Fig. 4), and others - hinged to the top 33

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Racks 29 are provided with a screw lock consisting of a screw 35 with a mounted

on it at one end a star 36 (fig. 2, 4), and on the other - a nut 37 clamping in the housing of the rack 29 its sliding part 30. On both sides of the star 36 on the shaft 35 rotate freely

guide paws 38 serving for the idle passage of the upper and lower branches of the closed traction chains 21 and 22.

A horizontal friction disk 41 is located on the vertical shaft 39 and the side bracket 40 welded to the frame of the pillars 29, which together with the screw lock has an expansion mechanism and serves to pivot the pillars 29 between the roof and the soil by frictional rotation of the sliding parts 30.

Executive body 1 consists of static planes, between which a dynamic plane is located between the bars 42 (Fig. 5). The static plow consists of a body 43 and a sliding part 44, spring-loaded with spring 45. Such extensibility ensures coal is crushed all over the face at a variable reservoir thickness. Fists 46 with cutters 47 are welded to the body and the sliding part. The plow body rests on rollers 48, 49 and 50, and the sliding part follows the unevenness of the roof, while being moved under the roof, thanks to sprung under-roofing rollers 51.

On both sides, the plowshares 52 with the ground cutters 53 and 54 are welded to the hull of the 43 pillars.

The dynamic plow consists of a frame 55 B in the form of a frame inside which the drums 56 with cutters 57 are fixed vertically. Stars 58 are fixed on the upper parts of the shafts of the drums 56, which are used to transmit the rotation of the plow train to the drums from the idle branch 3. The plow body is also equipped with rollers similar to rollers 48, 49, 50, as well as plowshares 59, which serve for loading coal onto a conveyor 8.

Plow complex works as follows.

At the beginning of the cycle, the actuator 1 moves upwards to the ventilation working, and sections 14 and 13 are located along the conveyor 8 and are unstuck between the roof and the ground. When this section 13 presses the conveyor 8 to the bottom.

When the actuator 1 moves upwards, the front static plow (Figs. 1, 5) removes shavings 5 cm deep over the entire thickness of the formation. At the same time, receiving rotation from the idle branch of the traction chain 3, the drums 56 with the cutting edge 57 of the dynamic jet provide a preliminary weakening of the formation 60 (Fig. 1), thereby facilitating the subsequent removal of the chip with the lower static jet. At the same time, coal recovered by the upper static plow is loaded onto the conveyor with 8 plowshares of the dynamic and lower static plows.

The coal immersed on the conveyor 8 by means of a swinging chain with scrapers, folding in one direction of movement and moving apart in the other, is moved along the landing gear and loaded into trolleys 11.

Following the passage of the executive body 1 at a distance of 1-2 m

shifting and pressing to the bottom of the conveyor 8 by means of the mechanisms for shifting section 13 followed by pushing to the conveyor 8 of section 14. This operation is performed as follows. The drives 23 and 24 (fig. I) of closed traction chains 21 and 22 are turned on, on which working branches at certain distances between the hooks 61-64 (fig. 4) are fixed, which turn the stars of the 36 screw locks of the struts 29 sections 13, stars 20 screw jacks 17 and friction discs 41. Hooks are the links of the traction chain, located vertically, on the outer free surface of which the scallop 65 is welded.

Thus, when the closed traction chains 21 and 22 move synchronously upward (Fig. 1, 4), the hook 61 with the teeth 65 turns the star 36, and with it the screw 35 (Fig. 2). As a result, the nut 37 releases the sliding part 30 of the rack 29 and under the action of the rock pressure forces it descends into the housing of the rack 29, i.e., the racks 29 of the mobile section 5 are unloaded from the rock pressure. At this time, sections 13 are unraveled between the roof and the ground. Following the hook 61, the hook 62 rotates the star 20 screw jacks 17 and nuts 18 and moves section 13. Following the hook 62 62 0, the hook 63 due to the coronal gear 66 at the bottom of the friction discs 41 turns them (Fig. 2, 3, 4), and they turn the sliding parts 30 of the pillars 29. As a result, the racks 29 of the feeding sections 13 are spread. Between the roof and the soil with a force determined by the friction coefficients between the disk 41 and the sliding part 30 of the rack 29. At the same time, along the rim the disk has two sectors of projections and depressions. The sectors of the protrusions are located Q) that after the passage of the hooks 63, the cavities stop opposite the sliding parts 30 of the uprights 29, releasing them for subsequent unloading of the uprights from the rock pressure.

Following after the hook 63, the hook 64 5 (FIG. 4), acting on the star 36, turns it in the opposite direction. Thereby, the racks of the 29 sections 13 are clamped in the open state.

After the actuator reaches the ventilation hole 7, the shifting of sections 13 ceases I-2 m to the executive authority 1. It then goes to the transport excavation and in the zone of the shifted sections 13 is hacked to the bottom and stops, after which the shifting of sections 13 and conveyor 8 manufactured prior to vent generation. Executive body 1 returns again to the ventilation design, while performing

excavation of the ledge of the slab. In other words, using the so-called method of slanting races, there is no need to prepare leading niches.

Further, when the actuator 1 moves to the transport working followed by closed traction chains 21 and 22 with hooks, sections 14 are moved to the conveyor 8. The transport outputs also have slant races, then a cycle of unmanned coal excavation and movement of sections are.

After excavating the strip of coal in the clearing face to the length of the rod of the jack 28 (Fig. 1), the frame 27 of the drive 4 and the tension 5 stations are shifted to a new location, and the cycles of deserted coal are repeated.

Claims (3)

1. Plow complex, including sets of mechanized support sections with racks, expansion mechanisms, advancing mechanisms with jacks located between sections of mechanized support sets, and with a drive, a conveyor with a traction body, on which scrapers are fixed, and an executive Aa 3D 33 FIG. Z Fig.Z 0 five an organ with a cutting tool installed with the possibility of its movement by a closed traction chain along the conveyor, characterized in that, with the aim of increasing the working efficiency by expanding the range of application in the formation thickness, the traction body of the conveyor is installed with the possibility of reciprocating movement the scrapers are made with the possibility of folding along the traction body, while the drive of the sets of sections of the mechanized support is mounted with the possibility of their group shifting and expansion by two additionally closed circuit, equipped with hooks. 2. The round complex according to claim 1, characterized in that each expansion mechanism is made of a screw placed on a rack with a star and nut mounted on it and a friction disk, while the star is installed with the possibility of turning it with hooks of one of the additional closed traction chains. 3. The round complex according to claim 1, characterized in that each movement mechanism is made in the form of a screw jack and is equipped with stars mounted on a rack with the possibility of being hooked by hooks of another additional closed traction chain. 51 ///////// 5 8 iiS Y //////// // // // // // 7 Jfy33 FIG. ti6 3 kl «2 ////, 53 5 i / d «5 Vb 33 thirty //// L // / 61 B5 11 62 21 23 jj 5b 5755