SU1086179A1 - Machinery set for chamber mining of coal - Google Patents

Abstract

UNIT FOR CAMERA COLLECTION OF COAL, including becoming with excavation mafgana, even and odd sections of lining, interconnected with relocation jacks and supply pipelines and containing upper and lower supports with power elements. characterized in that, in order to improve the direction of its movement, it is made in the form of a horizontally closed conveyor with guide rollers connected by means of ratcheting to the lower supports of the support sections, which are installed between the branches of the conveyor with the ability to interact with the guide rollers , and in the upper and lower supports in the places of their contact with each other, longitudinal through grooves are made, in which the power elements are installed, made in the form of flexible sleeves, and sections call even and odd sections but larger sectional sootvetstvensl flexible hoses with: odd and even sections.

Description

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x 1 The invention relates to the mining industry and is intended for the extraction of minerals in a chamber process. A known unit for unmanned coal is a coal, which includes an executive body, a feed gear, consisting of links with a chain engagement, and a machine with a gear wheel located on it for carrying out a continuous feed lj. The disadvantage of the known device is that the unit does not have lining and the camera does not mount, which limits its scope, in addition, for pushing, it does not go around hard, which complicates the design. With a large length of the removal chamber, great pressure forces are required. The closest to the invention is a unit for chamber coal excavation, which includes becoming from the excavation, even and odd sections of Kf pi, interconnected with shifting jacks and supply pipes and containing upper and lower supports with the power elements 2J said aggregate is the difficulty of ensuring its directional movement to the bottom. The purpose of the invention is to improve the direction of movement of the unit. This goal is achieved by the fact that in the unit for coal chamber extraction, including by placing with the excavation machine, even and odd sections of lining, interconnected with jacks, advancing and supply pipelines and containing upper and lower supports with power elements, becoming made in the form of horizontal a closed conveyor with guide rollers, connected by means of ratchets to the lower supports of the support sections, which are installed between the branches of the conveyor with the possibility of interaction when moving with the guide rollers, and in the upper and lower supports, in the places of their contact, longitudinal through grooves are made between them, in which the power elements are installed, made in the form of flexible hoses, and the sections of the grooves of even S odd sections, respectively, are larger than the flexible hose sections of odd and even sections. 92 Figure 1 shows the assembly, a general view; in fig. 2 is a view A in FIG. on fig.Z - odd lining section, cross-section; in FIG. A, an even lining section, a transverse section J in FIG. 5, section B — B in FIG. 1; in Fig. 6, the position of the guide roller. The unit consists of a excavation machine 1, a bending stand, which includes a horizontally closed horizontal conveyor 2, odd 3 and even 4 sections of the lining, air duct 5, flexible guide, roelektromahstrali 6, shifter jacks 7, power elements in the form of flexible high-pressure hoses first 8 and second 9 groups. The securing sections consist of the upper 10 and lower 11 contacting supports and the first 8 and second 9 groups of sleeves spaced between them. The contact area of the upper and lower contacting supports of the support sections with lateral rocks is determined by the permissible specific load on the soil and the roof of the chamber, and the distance on which even and odd sections of support are installed from each other is equal to the stroke of the shifter 7 in one cycle. Moreover, the magnitude of the stroke of the jack rod in each particular case is determined by the permissible area of rock outcrop of the roof of the chamber, which depends on the durable properties of the host rocks. In the design of odd support sections there is a groove 12 for free passage of the loaded first group of sleeves, in the design of even sections there is a groove 13 for the passage of loaded second group of hoses. In addition, both types of lining sections have a groove 14 for free placement and movement of the air duct 5 and flexible ducts 6, the latter are connected with the conveyor and at the same time move along the chamber. The fastener sections along the length of the unit are installed between the inner idler guide 15 and the horizontally closed bending conveyor 2 loaded with 16 branches, the latter being a guide for moving the fastener sections, while the loaded (unfolded) fastener sections serve as a guide for moving the conveyor . Odd sections of lining; with the conveyor belt 2 using the mechanism 17 of the mechanism, and the even mechanisms with the storage mechanism 18. The ratchet mechanisms 17 and 18 are displaced relative to each other and have the opposite direction of the tooth. This is done with the expectation that along with the movement of the even sections, and when the unit was removed from the camera, becoming a unit moved with the movement of the odd sections. High-pressure sleeves on the head and end sections of the support have telescopic devices 19,20,21 and 2 which have the ability to change their length by the stroke of the advancing jack (one step of the even or odd sections). Moreover, telescopic devices 19 and 21 are mounted on the head section of the first crepe on the sleeve of the second group 9, and the second on the sleeves of the first group B. Telescopic devices 20 and 22 are mounted on the end section of the roof support. The bending conveyor 2 is equipped with guide rollers 23, along its outer perimeter. The rams of the shifter 7 connecting two adjacent sections (even and odd) are hinged to the latter, allowing the sections to move along a certain radius. On the excavation gateway 2A, there is a guide pad 25, which includes jacks of a thrust 26, a guide frame 27 and a beam of a predetermined direction 28. The guide frame consists of a base 29, overlap 30 and sliding racks 31. For the length of the guide frame at each instant of movement of the unit, at least two even and two odd support sections are placed. The beam of a given direction has a chute 32 in which the guide rollers 23 move. The radius of the beam of a given direction determines with the possibility of bending the aggregate. The unit works as follows. At the beginning of the excavation, the excavation machine 1 of the assembly is located on the guide pad 25 mounted on the excavation pad 24. The guide pad is installed in the plane of the formation and fixed in the drift using 794 side jacks 26. The guide rollers 23 are loaded into the groove of the beam of the specified direction 28 The even A and odd 3 sections of the support Ahod are inside the frame 27. With the help of high-pressure pump they load the sleeves 9, the latter splits all the odd sections of the supports in the frame between the base 29 and the overlap 30. At the same time, the pressure in the sleeves 8 fluids are discharged and all four sections are discharged. With the help of jacks 7 move along the entire length of the unit all the even sections of the lining to the odd per step of the stroke of the rod of the jack. The even sections, being connected by the ratchet mechanism 10 with the conveyor 2, will mix the whole assembly. As the guide rollers 23 move in the groove 32 along the radius of the guide beam 28, they push the excavation machine and the assembly into the chamber. As soon as the process of moving the unit to relatively fixed odd lining sections is completed, fluid pressure is applied to the first one, a group of sleeves 8, even sections are loaded, and fluid pressure in the second group of sleeves 9 is dumped and odd sections are unloaded. The jack of the shifter 7 is again turned on, and it moves the odd sections of the lining 3 relative to the fixed even ones by the step of the stroke of the jack rod. During the movement of odd sections, the unit becomes stationary. After the completion of the shifting of the odd sections, the cycle of moving the assembly rod is repeated. t After the nick-cutting process in the chamber is a notch and the head sections of the support, the coal is continued as follows. Pressure is applied to the sleeves of the second group 9, and all the odd sections. 3 load (they bulge between the roof and the soil of the chamber), the pressure in the first group of sleeves 8 is dropped. All even-numbered sections of the lining 4 unload. With the help of jacks 7 (some of which work as a piston and a part of the rod cavity) move all the even sections of the support relative to odd sections by a distance equal to the course of the rod of the jack. Simultaneously with shifting even sections

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due to the ratchet mechanism 18, the whole unit is moved to the bottom, except for the odd lining sections, which are under working pressure and perceive the rock pressure of the roof rocks of the chamber. The stationary loaded sleeves of the second group 9 remain stationary, the latter together with the inner guides of the idler 15 and loaded with 16 branches of the conveyor 2 are guides for moving the unloaded sections, and the presence of the groove 13 in the even sections allows them to move freely relative to the loaded sleeves 9. Together with the movement of the assembly stand, the telescopic devices 19 are lengthened, and the telescope 20 is reduced.

As soon as the process of moving the unit relative to the fixed odd lining sections is completed, fluid pressure is applied to the first group of sleeves 8, which even load the even lining sections 4. Relieving pressure in the second group of sleeves 9, unload the odd sections of the lining 3 and with the help of a jack 7 they move to the same distance that even sections were moved to. The presence of the groove 12 in the odd sections allows them to move freely relative to the loaded sleeves 9. During the movement of the odd sections, the assembly becomes stationary, since the ratchet mechanism 17 has the opposite direction of the teeth compared to the ratchet mechanism 18. The telescopic devices 1 9 are reduced, and telescope 20 is extended on the slide of the support. By moving the odd lining sections, pro96

The process of feeding the machine to slaughter is repeated.

The unit, reaching the design length of the camera, begins to reverse. During the return stroke of the unit from the chamber, the operations of shifting the support and stand of the unit are repeated. The only difference is that when the odd numbered sections 3 move relative to the stationary loaded even 4, the ratchet mechanism 17 moves and becomes the unit, and with it the telescopic devices 20 are reduced and 22 are lengthened. When moving even sections with respect to the odd ones, the ratchet mechanism 18 does not work and the assembly becomes stationary, and the telescopic devices 20 elongate and 22 decrease.

Alternating podgivaniya even and odd sections of lining continues until the unit is completely out on the excavation drift. Then, the jacks of thrust 26 are released and the guide pad 25 is moved to the mouth of the new chamber. Having established and having fastened a platform, begin dredging of the next camera.

Such an implementation of the unit allows to reduce the laboriousness and duration of the execution of end operations, increase the reliability of the unit, and at the same time the utilization rate

last one.

Non-efficient energy consumption is achieved to overcome frictional forces as the unit moves around the chamber. This, with a decrease in the total installed power of the engines, makes it possible to increase the specific power-supply ratio of the unit and the length of the camera to be compressed.

Claims (1)

UNIT FOR CHAMBER CHAMBER COAL, including becoming with a excavating machine, odd and even support sections, interconnected moving jacks and supply pipelines and containing upper and lower supports with power elements, characterized in that, in order to improve the direction of its movement, becoming made in the form of a horizontally closed conveyor with guide rollers, connected by ratchet mechanisms to the lower supports of the support sections, which are installed between the conveyor branches with the possibility of interaction and sliding with guide rollers, and in the upper and lower supports in the places of their contact with each other, longitudinal through grooves are made in which power elements are made, made in the form of flexible Q of the sleeves, while the cross-sections of the grooves of even <9 and odd sections, respectively, are larger than the section of the flexible sleeves of the odd and even sections. >